Hot n Cold (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Hot n Cold" in English language version.

refsWebsite

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99web.archive.org

1^st place

26billboard.com

19^th place

18^th place

11tophit.com

6,935^th place

4,122^nd place

7ifpi.fi

1,413^th place

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5ultratop.be

257^th place

219^th place

5swisscharts.com

630^th place

421^st place

4apple.com

67^th place

64^th place

4discogs.com

91^st place

122^nd place

3austriancharts.at

276^th place

477^th place

3top40.nl

1,183^rd place

838^th place

3dutchcharts.nl

400^th place

259^th place

3ifpicr.cz

2,014^th place

1,250^th place

2nytimes.com

7^th place

2musiccanada.com

767^th place

503^rd place

2cbsnews.com

108^th place

80^th place

2capitalfm.com

2,487^th place

1,559^th place

2idolator.com

2,015^th place

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2nsk.hr

low place

2lescharts.com

582^nd place

541^st place

2offiziellecharts.de

190^th place

325^th place

2tophit.ru

2,259^th place

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2ukchartsplus.co.uk

6,715^th place

3,870^th place

2fimi.it

848^th place

1,037^th place

2elportaldemusica.es

3,213^th place

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2pro-musicabr.org.br

5,416^th place

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2fmqb.com

7,637^th place

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2proquest.com

206^th place

124^th place

1hitquarters.com

4,070^th place

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1thestarscoop.com

low place

1digitalspy.co.uk

277^th place

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1musicomh.com

4,781^st place

2,742^nd place

1musicnotes.com

5,059^th place

2,895^th place

1popmatters.com

631^st place

390^th place

1slantmagazine.com

1,006^th place

589^th place

1bbc.co.uk

8^th place

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1theguardian.com

12^th place

11^th place

1eonline.com

122^nd place

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1hitfix.com

1,551^st place

953^rd place

1riaa.com

162^nd place

128^th place

1bpi.co.uk

292^nd place

226^th place

1acharts.us

2,710^th place

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1dropbox.com

1,209^th place

689^th place

1ifpi.dk

2,432^nd place

1,597^th place

1ifpi.at

2,792^nd place

2,532^nd place

1singeruniverse.com

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1musicvideocast.com

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1rollingstone.com

47^th place

38^th place

1youtube.com

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1neonlimelight.com

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1theverge.com

114^th place

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1independent.co.uk

36^th place

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1azcentral.com

814^th place

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1smh.com.au

132^nd place

96^th place

1australian-charts.com

596^th place

389^th place

1bamp-bg.org

low place

1danishcharts.dk

2,791^st place

1,649^th place

1slagerlistak.hu

1,726^th place

1,006^th place

1ruv.is

6,176^th place

4,330^th place

1irishcharts.ie

1,454^th place

841^st place

1mediaforest.biz

low place

1italiancharts.com

1,739^th place

1,547^th place

1metrolatinousa.com

low place

1charts.nz

720^th place

419^th place

1norwegiancharts.com

1,106^th place

702^nd place

1mycharts.pl

low place

1upfr.ro

low place

1spanishcharts.com

2,368^th place

1,676^th place

1swedishcharts.com

659^th place

483^rd place

1officialcharts.com

76^th place

69^th place

1recordreport.com.ve

low place

1aria.com.au

948^th place

599^th place

1archive.today

14^th place

1musicharts.net

low place

1rianz.org.nz

low place

1hitlistan.se

low place

1billboard.biz

2,332^nd place

1,381^st place

1mtv.de

3,497^th place

7,716^th place

1mahasz.hu

low place

1telegrafonline.ro

low place

1news.com.au

294^th place

205^th place

1rtl.de

1,285^th place

6,808^th place

1chello.nl

low place

1chartsinfrance.net

1,590^th place

4,734^th place

1musikindustrie.de

1,018^th place

999^th place

1ifpi.no

7,380^th place

4,895^th place

1nztop40.co.nz

777^th place

469^th place

1musicweek.com

2,278^th place

1,337^th place

1radioandrecords.com

low place

7,603^rd place

1amazon.de

2,145^th place

2,190^th place

1eil.com

low place

7,482^nd place

1fnac.com

8,299^th place

low place

1mtv.com

80^th place

67^th place

1allmusic.com

25^th place

22^nd place

acharts.us

"Katy Perry – Hot n Cold – Music Charts". αCharts.us. Archived from the original on June 14, 2011. Retrieved December 2, 2010.

allmusic.com

"Strike! - The Baseballs". AllMusic. Archived from the original on October 19, 2013. Retrieved January 14, 2014.

amazon.de

"Hot N Cold". November 1, 2008. Archived from the original on April 21, 2024. Retrieved October 31, 2016 – via Amazon.

apple.com

itunes.apple.com

"iTunes – Music – One of the Boys by Katy Perry". iTunes Store. June 17, 2008. Archived from the original on February 4, 2016. Retrieved January 14, 2014.
"iTunes Store". iTunes. Archived from the original on December 8, 2013.
"Punk Goes Pop, Vol. 3". iTunes Store. Archived from the original on February 28, 2014. Retrieved April 11, 2014.
"iTunes Live: London Festival '09 – EP". iTunes Store. January 2009. Archived from the original on April 21, 2024. Retrieved July 15, 2009. Note: Need iTunes to view link

archive.today

"ARIA Charts – End Of Year Charts – Top 100 Singles 2008". Australian Recording Industry Association. Archived from the original on April 13, 2010. Retrieved July 23, 2010.

aria.com.au

"ARIA Charts – End Of Year Charts – Top 100 Singles 2008". Australian Recording Industry Association. Archived from the original on April 13, 2010. Retrieved July 23, 2010.

australian-charts.com

"Katy Perry – Hot n Cold". ARIA Top 50 Singles.

austriancharts.at

"Katy Perry – Hot n Cold" (in German). Ö3 Austria Top 40.
"Jahreshitparade 2008 – austriancharts.at" (in German). Hung Medien. Archived from the original on December 24, 2013. Retrieved July 23, 2010.
"Jahreshitparade 2009 – austriancharts.at" (in German). Hung Medien. Archived from the original on September 10, 2010. Retrieved July 23, 2010.

azcentral.com

Ed Masley (January 20, 2018). "Katy Perry show bears witness to singer's enduring appeal a decade after 'Kissed a Girl'". AZ Central. Retrieved January 22, 2018.

bamp-bg.org

"Airplay Top 10 NMC Week47 (17.11.2008 - 23.11.2008)". Bulgarian Association of Music Producers (in Bulgarian). Archived from the original on January 24, 2009. Retrieved November 6, 2021.

bbc.co.uk

Ennever, Lizzie (2008). "Katy Perry One Of The Boys Review". BBC. Archived from the original on January 26, 2016. Retrieved May 19, 2014.

billboard.biz

"Pro Posts". Archived from the original on October 4, 2012.

billboard.com

"Katy Perry – Chart history". Billboard. Archived from the original on July 14, 2014. Retrieved April 9, 2014.
Trust, Gary (August 28, 2020). "Ask Billboard: Katy Perry's Career Bests, From 'One of the Boys' to 'Smile,' & Every Hot 100 'Idol' Top 10". Billboard. Archived from the original on August 29, 2020. Retrieved August 31, 2020.
Paine, Andre (November 6, 2008). "American Acts Win Big at MTV EMAs". Billboard. Archived from the original on August 31, 2014. Retrieved January 14, 2014.
"Katy Perry Chart History (Canadian Hot 100)". Billboard.
"Katy Perry Chart History (Canada AC)". Billboard. Retrieved June 25, 2020.
"Katy Perry Chart History (Canada CHR/Top 40)". Billboard. Retrieved June 25, 2020.
"Katy Perry Chart History (Canada Hot AC)". Billboard. Retrieved June 25, 2020.
"Katy Perry Chart History (Japan Hot 100)". Billboard.
"Katy Perry Chart History (Portugal Digital Song Sales)". Billboard. ^{[dead link]}
"Katy Perry Chart History (Hot 100)". Billboard.
"Katy Perry Chart History (Adult Contemporary)". Billboard. Retrieved July 13, 2014.
"Katy Perry Chart History (Adult Pop Songs)". Billboard. Retrieved December 27, 2008.
"Katy Perry Chart History (Dance Club Songs)". Billboard. Retrieved July 13, 2014.
"Katy Perry Chart History (Dance Singles Sales)". Billboard. Retrieved November 19, 2021.
"Katy Perry Chart History (Pop Songs)". Billboard. Retrieved November 29, 2008.
"Katy Perry Chart History (Rhythmic)". Billboard. Retrieved July 13, 2014.
"Canadian Hot 100 Year-End 2008". Billboard. Archived from the original on May 23, 2013. Retrieved March 31, 2012.
"Top 100 Music Hits, Top 100 Music Charts, Top 100 Songs & The Hot 100: Best of 2008". Billboard. Archived from the original on April 6, 2022. Retrieved December 10, 2011.
"Pop Songs – Year-End 2008". Billboard. January 2, 2013. Archived from the original on April 3, 2019. Retrieved September 12, 2019.
"Canadian Hot 100 Music Chart: Best of 2009". Billboard. Archived from the original on March 1, 2010. Retrieved July 23, 2010.
"European Hot 100: Best of 2009". Billboard. Archived from the original on March 15, 2013. Retrieved July 23, 2010.
"Top 100 Music Hits, Top 100 Music Charts, Top 100 Songs & The Hot 100: Best of 2009". Billboard. Archived from the original on February 3, 2016. Retrieved July 23, 2010.
"Adult Contemporary Pop Songs – Year-End 2009". Billboard. January 2, 2013. Archived from the original on April 11, 2019. Retrieved September 12, 2019.
"Adult Pop Songs – Year-End 2009". Billboard. January 2, 2013. Archived from the original on April 7, 2019. Retrieved September 12, 2019.
"Pop Songs – Year-End 2009". Billboard. January 2, 2013. Archived from the original on October 31, 2020. Retrieved September 12, 2019.
"The Billboard Hot 100 Decade End Charts". Billboard. December 31, 2009. Archived from the original on January 9, 2011.

bpi.co.uk

"British single certifications – Katy Perry – Hot n Cold". British Phonographic Industry. Retrieved July 1, 2022.

capitalfm.com

"Katy Perry – Hot N Cold". Capital FM. October 13, 2008. Archived from the original on September 16, 2014. Retrieved September 15, 2014.
"Katy Perry mocks Sesame Street ban". Capital FM. Archived from the original on September 6, 2015. Retrieved January 14, 2014.

cbsnews.com

""All Access:" Katy Perry". CBS News. February 4, 2009. Archived from the original on January 17, 2014. Retrieved January 14, 2014.
"Katy Perry Too Hot for 'Sesame Street'?". CBS News. September 23, 2010. Archived from the original on May 5, 2014. Retrieved January 14, 2014.

charts.nz

"Katy Perry – Hot n Cold". Top 40 Singles.

chartsinfrance.net

Goncalves, Julien (June 25, 2017). "Katy Perry: What are her 10 biggest hits in France?" (in French). Pure Charts. Archived from the original on October 1, 2017. Retrieved October 30, 2017.

chello.nl

members.chello.nl

"Decenniumlijst Jaren '00 (1-1000)". Chello. Archived from the original on April 26, 2009.

danishcharts.dk

"Katy Perry – Hot n Cold". Tracklisten.

digitalspy.co.uk

Fletcher, Alex (October 26, 2008). "Katy Perry: 'Hot n Cold' Music Review". Digital Spy. Archived from the original on January 4, 2014. Retrieved January 4, 2014.

discogs.com

"Katy Perry – Hot N Cold (Remixes) (2009, Cardsleeve, CD)". Discogs. Archived from the original on March 3, 2020. Retrieved January 2, 2020.
"Katy Perry vs Almighty Cover Girlz – Hot N' Cold (2008, CDR)". Discogs. Archived from the original on March 30, 2020. Retrieved January 2, 2020.
"Katy Perry – Hot N Cold (2008, CDR)". Discogs. Archived from the original on March 8, 2020. Retrieved January 2, 2020.
"Katy Perry – Hot N Cold (2009, CDR)". Discogs. Archived from the original on March 8, 2020. Retrieved January 2, 2020.

dropbox.com

"Singles Accreditations Report - March 2024" (PDF). Australian Recording Industry Association. Archived from the original on April 21, 2024. Retrieved April 18, 2024.

dutchcharts.nl

"Katy Perry – Hot n Cold" (in Dutch). Single Top 100.
"Jaaroverzichten – Single 2008" (in Dutch). MegaCharts. Archived from the original on June 6, 2020. Retrieved August 27, 2018.
"Jaaroverzichten – Single 2009" (in Dutch). MegaCharts. Archived from the original on February 17, 2021. Retrieved August 27, 2018.

eil.com

"Katy Perry Hot N Cold UK CD single (CD5 / 5") (454294)". Archived from the original on March 21, 2014. Retrieved October 31, 2016.

elportaldemusica.es

"Top 100 Songs Annual 2009" (in Spanish). Productores de Música de España. Archived from the original on May 9, 2022. Retrieved May 8, 2022.
"Spanish single certifications – Katy Perry – Hot n Cold". El portal de Música. Productores de Música de España. Retrieved May 21, 2024.

eonline.com

"Complete List of Nominees for the 52nd Annual Grammy Awards". E!. NBCUniversal. December 3, 2009. Archived from the original on October 20, 2013. Retrieved January 4, 2014.

fimi.it

"FIMI – Federazione Industria Musicale Italiana – Ricerche e dati di mercato". Fimi.it. January 19, 2010. Archived from the original on January 23, 2010. Retrieved December 18, 2010.
"Italian single certifications – Katy Perry – Hot'n Cold" (in Italian). Federazione Industria Musicale Italiana. Retrieved October 18, 2021.

fmqb.com

"CHR Available For Airplay – Archive". Archived from the original on June 2, 2013. Retrieved October 31, 2016.
"FMQB: Radio Industry News, Music Industry Updates, Arbitron Ratings, Music News and more!". FMQB. October 7, 2008. Archived from the original on January 23, 2009. Retrieved August 9, 2022.

fnac.com

musique.fnac.com

"Hot n cold – Katy Perry – CD maxi single – Achat & prix Fnac". Archived from the original on October 31, 2016. Retrieved October 31, 2016.

hitfix.com

"52nd Annual Grammy Awards winners: A complete list". HitFix. Archived from the original on January 15, 2014. Retrieved January 14, 2014.

hitlistan.se

"Årslista Singlar – År 2008" (in Swedish). Swedish Recording Industry Association. Archived from the original on July 19, 2011. Retrieved January 5, 2011.

hitquarters.com

"Interview with Chris Anokute". HitQuarters. Archived from the original on July 13, 2014. Retrieved March 21, 2014.

idolator.com

Adickman, Erika Brooks (April 16, 2010). "Taylor Swift Sings 'Hot n Cold' with Katy Perry, Proves She Can Share a Spotlight". Idolator. Spin Media. Retrieved January 14, 2014.
Daw, Robbie (February 12, 2010). "Watch Selena Gomez Cover Backstreet Boys and Katy Perry Live". Idolator. Archived from the original on April 21, 2024. Retrieved January 14, 2014.

ifpi.at

"Austrian single certifications – Katy Perry – Hot n Cold" (in German). IFPI Austria. Retrieved March 10, 2012.

ifpi.dk

"Danish single certifications – Katy Perry – Hot n Cold". IFPI Danmark. Retrieved March 10, 2012. Scroll through the page-list below until year 2008 to obtain certification.

ifpi.fi

"Katy Perry: Hot n Cold" (in Finnish). Musiikkituottajat. Retrieved August 27, 2013.
"Musiikituottajat". IFPI. Archived from the original on October 14, 2013. Retrieved April 9, 2014.
"Musiikituottajat". IFPI. Archived from the original on June 22, 2015. Retrieved April 9, 2014.
"Musiikituottajat". IFPI. Archived from the original on March 3, 2016. Retrieved April 9, 2014.
"Musiikituottajat". IFPI. Archived from the original on March 25, 2016. Retrieved April 9, 2014.
"Katy Perry" (in Finnish). Musiikkituottajat – IFPI Finland. Retrieved March 10, 2012.
"The Baseballs: Hot n Cold" (in Finnish). Musiikkituottajat.

ifpi.no

"Norwegian single certifications – Katy Perry – Hot n Cold" (in Norwegian). IFPI Norway. Retrieved November 19, 2021.

ifpicr.cz

"Čns Ifpi". Ifpicr.cz. Archived from the original on March 3, 2016. Retrieved December 2, 2010.

hitparada.ifpicr.cz

"ČNS IFPI" (in Czech). Hitparáda – Radio Top 100 Oficiální. IFPI Czech Republic. Note: Change the chart to CZ – RADIO – TOP 100 and insert 200904 into search.

hitparadask.ifpicr.cz

"ČNS IFPI" (in Slovak). Hitparáda – Radio Top 100 Oficiálna. IFPI Czech Republic. Note: insert 200849 into search.

independent.co.uk

Wyatt, Daisy. "Katy Perry's Prismatic World Tour, The O2, review". The Independent. Independent Print Limited. Archived from the original on May 29, 2014. Retrieved May 30, 2014.

irishcharts.ie

"The Irish Charts – Search Results – Hot'n'Cold". Irish Singles Chart. Retrieved January 20, 2020.

italiancharts.com

"Katy Perry – Hot n Cold". Top Digital Download.

lescharts.com

"Katy Perry – Hot n Cold" (in French). Les classement single.
"lescharts.com – Français" (in French). Les classement de telechargement single.

mahasz.hu

"Éves összesített listák – MAHASZ Rádiós TOP 100 (súlyozott)". Mahasz. Archived from the original on December 28, 2010. Retrieved October 21, 2010.

mediaforest.biz

"Media Forest Week 02, 2009". Israeli Airplay Chart. Media Forest.

metrolatinousa.com

"Sigue Banda El Recodo en primer lugar de la lista de Monitor Latino" (in Spanish). Metrolatino USA. December 22, 2008. Archived from the original on January 7, 2017. Retrieved January 6, 2017.

mtv.com

buzzworthy.mtv.com

Ryan, Chris. "Video: Woe, Is Me on their Pop Goes Punk cover of Katy Perry's "Hot n Cold"". MTV News. Archived from the original on April 13, 2014. Retrieved April 11, 2014.

mtv.de

":: MTV | charts". MTV. December 29, 2009. Archived from the original on January 1, 2010. Retrieved December 2, 2010.

musiccanada.com

"Canadian single certifications – Katy Perry – Hot n Cold". Music Canada. Retrieved March 10, 2012.
"Canadian ringtone certifications – Katy Perry – Hot n Cold". Music Canada. Retrieved April 28, 2022.

musicharts.net

"German Top 100 Singles". Musicharts. Archived from the original on July 10, 2019. Retrieved April 11, 2014.

musicnotes.com

"Katy Perry 'Hot n Cold' Sheet Music". MusicNotes. September 22, 2008. Retrieved January 14, 2014.

musicomh.com

Harvey, Darren (September 14, 2008). "Katy Perry – One of the Boys". MusicOMH. Archived from the original on January 4, 2014. Retrieved January 4, 2014.

musicvideocast.com

"Katy Perry – Hot N Cold (Music Video)". Music Video Cast. Archived from the original on September 16, 2014. Retrieved September 15, 2014.

musicweek.com

Jones, Alan (October 28, 2013). "Official Charts Analysis: Lorde single sells 82k to hit No.1". Music Week. Intent Media. Archived from the original on December 27, 2021. Retrieved October 28, 2015.

musikindustrie.de

"Gold-/Platin-Datenbank (Katy Perry; 'Hot'n Cold')" (in German). Bundesverband Musikindustrie. Retrieved April 27, 2018.

mycharts.pl

"Nielsen Airplay Top 5" (in Polish). Nielsen Music Control. Archived from the original on November 18, 2016. Retrieved November 18, 2016.

neonlimelight.com

"Katy Perry Gets Lucky Performing on the Today Show". Neon Limelight. Archived from the original on January 15, 2014. Retrieved January 14, 2014.

news.com.au

McCabe, Kathy (July 1, 2010). "Delta Goodrem's talents top the charts". The Daily Telegraph. Archived from the original on January 9, 2010. Retrieved October 1, 2010.

norwegiancharts.com

"Katy Perry – Hot n Cold". VG-lista.

nsk.hr

haw.nsk.hr

"Airplay Radio Chart 2009 Year End Edition". 2009. Retrieved May 17, 2024.
"Airplay Radio Chart 2009 Year End Edition". 2009. Retrieved May 17, 2024.

nytimes.com

Caramanica, Jon (June 16, 2008). "Critics' Choice – New CDs from the Hold Steady, Plies, Katy Perry, Guillermo Klein and Bonnie (Prince) Billy". The New York Times. Archived from the original on March 12, 2018. Retrieved January 4, 2014.
Pareles, Jon (June 19, 2011). "Katy Perry's Sweetened Raunch at Nassau Coliseum". The New York Times. Archived from the original on May 4, 2018. Retrieved January 14, 2014.

nztop40.co.nz

"New Zealand single certifications – Katy Perry – Hot n Cold". Recorded Music NZ. Retrieved March 3, 2012.

officialcharts.com

"Katy Perry: Artist Chart History". Official Charts Company.

offiziellecharts.de

"Katy Perry – Hot n Cold" (in German). GfK Entertainment charts.
"The Baseballs – Hot n Cold" (in German). GfK Entertainment charts. Retrieved May 29, 2019.

popmatters.com

Hohman, Charles A. (June 30, 2008). "Katy Perry: One of the Boys". PopMatters. Archived from the original on June 1, 2017. Retrieved January 14, 2014.

pro-musicabr.org.br

"Brazilian single certifications – Katy Perry – Hot n Cold" (in Portuguese). Pro-Música Brasil. Retrieved February 9, 2024.
"Brazilian single certifications – Katy Perry – Hot n Cold" (in Portuguese). Pro-Música Brasil. Retrieved April 28, 2022.

proquest.com

"Éxitos discográficos americanos de la semana: AMÉRICA-DISCOS". EFE News Services. January 23, 2009. ProQuest 433281978. Archived from the original on January 6, 2024. Retrieved January 6, 2024.

search.proquest.com

"Éxitos discográficos americanos de la semana: AMÉRICA-DISCOS". EFE News Services. January 23, 2009. ProQuest 433281978. Archived from the original on January 6, 2024. Retrieved January 6, 2024.

radioandrecords.com

gfa.radioandrecords.com

"®R&R :: Going For Adds™ :: Rhythmic". Archived from the original on May 18, 2015. Retrieved February 9, 2021.

recordreport.com.ve

"Pop Rock" (in Spanish). Record Report. January 17, 2009. Archived from the original on January 19, 2009.

riaa.com

"American single certifications – Katy Perry – Hot n Cold". Recording Industry Association of America. Retrieved February 13, 2024.

rianz.org.nz

"Annual Top 50 Singles Chart 2008 (select "2008" and "Singles" from drop-down lists)". Recording Industry Association of New Zealand. Archived from the original on July 22, 2010. Retrieved July 23, 2010.

rollingstone.com

"The Complete Guide to Katy Perry's Music Videos". Rolling Stone. June 22, 2011. Archived from the original on May 7, 2014. Retrieved April 11, 2014.

rtl.de

"Die ultimative Chart Show | Download". RTL.de. Archived from the original on July 19, 2011. Retrieved December 2, 2010.

ruv.is

"Katy Perry Chart History". RÚV. March 30, 2016. Archived from the original on January 11, 2021. Retrieved June 19, 2017.

singeruniverse.com

Edelstein, Paula. "Jadyn Maria Interview – Recording and Touring with Ne-Yo". Singer Universe. Archived from the original on January 15, 2014. Retrieved January 14, 2014.

slagerlistak.hu

"Archívum – Slágerlisták – MAHASZ" (in Hungarian). Rádiós Top 40 játszási lista. Magyar Hanglemezkiadók Szövetsége.

slantmagazine.com

Cinquemani, Sal (June 15, 2008). "Katy Perry: One of the Boys". Slant Magazine. Archived from the original on September 24, 2015. Retrieved January 4, 2014.

smh.com.au

Griffin, Michelle. "Junior MasterChef recap: The only loser? Katy Perry". The Sydney Morning Herald. Archived from the original on September 15, 2010. Retrieved January 14, 2014.

spanishcharts.com

"Katy Perry – Hot n Cold" Canciones Top 50.

swedishcharts.com

"Katy Perry – Hot n Cold". Singles Top 100.

swisscharts.com

"Katy Perry – Hot n Cold". Swiss Singles Chart.
"Swiss Year-End Charts 2008". Hung Medien. Archived from the original on October 13, 2013. Retrieved July 23, 2010.
"Swiss Year-End Charts 2009". Hung Medien. Archived from the original on January 13, 2010. Retrieved July 23, 2010.
"The Official Swiss Charts and Music Community: Awards ('Hot n Cold')". IFPI Switzerland. Hung Medien. Retrieved March 3, 2012.
"The Baseballs – Hot n Cold". Swiss Singles Chart.

telegrafonline.ro

"Rock-ul, cenzurat de posturile româneşti de radio" (in Romanian). Telegraful. Archived from the original on February 11, 2010. Retrieved January 10, 2009.

theguardian.com

"Katy Perry gets a Ukrainian makeover". The Guardian. March 26, 2009. Archived from the original on October 6, 2014. Retrieved September 15, 2014.

thestarscoop.com

"Katy Perry Exclusive Interview". The Star Scoop. Archived from the original on December 29, 2017. Retrieved January 4, 2014.

theverge.com

"YouTube Live: a disastrous spectacle Google would like you to forget". The Verge. November 2013. Archived from the original on January 16, 2014. Retrieved January 14, 2014.

top40.nl

"Nederlandse Top 40 – week 01, 2009" (in Dutch). Dutch Top 40.
"Top 100-Jaaroverzicht van 2008". Dutch Top 40. Archived from the original on October 19, 2019. Retrieved December 25, 2019.
"Top 100-Jaaroverzicht van 2009". Dutch Top 40. Archived from the original on April 7, 2019. Retrieved December 25, 2019.

tophit.com

Katy Perry — Hot'n'Cold. TopHit. Retrieved June 17, 2021.
"Top Radio Hits Russia Weekly Chart: Jan 15, 2009". TopHit. Retrieved April 21, 2024.
"Top Radio Hits Ukraine Weekly Chart: Feb 5, 2009". TopHit. Retrieved April 21, 2024.
"Top Radio Hits Russia Annual Chart: 2008". TopHit. Archived from the original on April 27, 2024. Retrieved April 21, 2024.
"Top Radio Hits Ukraine Annual Chart: 2008". TopHit. Retrieved April 21, 2024.
"Top Radio Hits Russia Annual Chart: 2009". TopHit. Archived from the original on April 27, 2024. Retrieved April 21, 2024.
"Top Radio Hits Ukraine Annual Chart: 2009". TopHit. Retrieved April 21, 2024.
"Top Radio Hits Russia Annual Chart: 2010". TopHit. Retrieved April 21, 2024.
"Top Radio Hits Ukraine Annual Chart: 2010". TopHit. Retrieved April 21, 2024.
"Top Radio Hits Ukraine Annual Chart: 2011". TopHit. Retrieved April 21, 2024.
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tophit.ru

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