Goodman, Jessica; O'Donnell, Kevin (November 22, 2015). "AMAs 2015: 11 best moments". Entertainment Weekly. Archived from the original on November 27, 2015. Retrieved December 21, 2015.
"ČNS IFPI" (in Czech). Hitparáda – Digital Top 100 Oficiální. IFPI Czech Republic. Note: Change the chart to CZ – SINGLES DIGITAL – TOP 100 and insert 201546 into search. Retrieved December 19, 2015.
"ČNS IFPI" (in Czech). Hitparáda – Radio Top 100 Oficiální. IFPI Czech Republic. Note: Change the chart to CZ – RADIO – TOP 100 and insert 201607 into search. Retrieved February 17, 2016.
hitparadask.ifpicr.cz
"ČNS IFPI" (in Slovak). Hitparáda – Singles Digital Top 100 Oficiálna. IFPI Czech Republic. Note: Select SINGLES DIGITAL - TOP 100 and insert 201544 into search. Retrieved December 19, 2015.
"ČNS IFPI" (in Slovak). Hitparáda – Radio Top 100 Oficiálna. IFPI Czech Republic. Note: insert 201603 into search. Retrieved January 11, 2016.
Goodman, Jessica; O'Donnell, Kevin (November 22, 2015). "AMAs 2015: 11 best moments". Entertainment Weekly. Archived from the original on November 27, 2015. Retrieved December 21, 2015.