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Katy Perry Reunites With Max Martin in Sweden: Watch. Billboard [online]. 2018-06-12 [cit. 2020-08-07]. Dostupné online.
Katy Perry Reveals Inspiration Behind Upcoming 'KP5' Track 'Teary Eyes' in New Interview. Billboard [online]. 2020-06-23 [cit. 2020-08-07]. Dostupné online.
Katy Perry Drops Acoustic Version of ‘Daisies,' Confirms ‘Never Really Over’ Will Be on ‘KP5’. Billboard [online]. 2020-07-01 [cit. 2020-08-07]. Dostupné online.
Katy Perry Delivers 'Smile' Album Delay News With a Pie in Her Face: See the Announcement. Billboard [online]. 2020-07-27 [cit. 2020-08-07]. Dostupné online.
The 'KP5' Era Is Here: Katy Perry Announces First Single 'Daisies' From Upcoming Album. Billboard [online]. 2020-05-07 [cit. 2020-08-10]. Dostupné online.
Watch Aliens Abduct Zooey Deschanel Instead of Katy Perry in 'Not the End of the World' Video. Billboard [online]. [cit. 2021-01-13]. Dostupné online. (anglicky)
Katy Perry Unveils New Song 'What Makes A Woman' Dedicated to Her Unborn Daughter: Listen. Billboard [online]. 2020-08-20 [cit. 2020-08-29]. Dostupné online.
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Consequence of Sound [online]. 2020-07-10 [cit. 2020-08-10]. Dostupné online. (anglicky)
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Katy Perry posouvá vydání alba "Smile", budete si jej ale moci pořídit v několika verzích. musicserver.cz [online]. [cit. 2020-08-07]. Dostupné online.
RECENZE: Katy Perry by se s vámi na desce "Smile" chtěla konečně smát, vy ale budete spíš plakat. musicserver.cz [online]. [cit. 2020-11-21]. Dostupné online.
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NME Music News, Reviews, Videos, Galleries, Tickets and Blogs | NME.COM [online]. 2020-08-27 [cit. 2020-11-21]. Dostupné online. (anglicky)
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Katy Perry "a world class vocalist" on new album. www.officialcharts.com [online]. [cit. 2020-08-07]. Dostupné online. (anglicky)
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Pregnant Katy Perry Talks Upcoming New Music: 'There's Gonna Be a Lot to Release in the Summer'. PEOPLE.com [online]. [cit. 2020-08-07]. Dostupné online. (EN)
DOLAN, Jon; DOLAN, Jon. Rolling Stone [online]. 2020-08-28 [cit. 2020-11-21]. Dostupné online. (anglicky)
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Ian Kirkpatrick on helping create Dua Lipa’s “New Rules” and other weirdo mega-hits. The FADER [online]. [cit. 2020-07-19]. Dostupné online. (anglicky)
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youtube.com
Katy Perry - What Makes A Woman (Acoustic Video) [online]. 20. srpna 2020 [cit. 2020-08-22]. Dostupné online.
