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Drums
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Max Martin
Dr. Luke
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Performer
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Lyricist
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Lukasz Gottwald
Katy Perry
M Martin
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Composer
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Mixing Assistant
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Phil Seaford
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Production
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Recording Assistant
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Tatiana Gottwald
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Production
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Additional Vocals
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B.o.b
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Other
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Conductor
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L. Leon Pendarvis
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Conductor
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Featured Artist
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B.o.b
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Main Performer
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Keyboard
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Max Martin
Dr. Luke
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Performer
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Composer
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Lukasz Gottwald
Katy Perry
M Martin
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Composer
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Performer
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Max Martin
B.o.b
Katy Perry
Dr. Luke
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Performer
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Vocals
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Katy Perry
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Performer
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Mixing
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John Hanes
Serban Ghenea
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Production
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Production Coordination
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Vanessa Silberman
Megan Dennis
Irene Richter
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Production
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Programmer
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Max Martin
Dr. Luke
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Production
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Recording
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Emily Wright
Sam Holland
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Production
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Studio Personnel
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Vanessa Silberman
Emily Wright
Sam Holland
Serban Ghenea
Irene Richter
Megan Dennis
Phil Seaford
Tatiana Gottwald
John Hanes
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Production
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Composer Lyricist
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Lukasz Gottwald
Katy Perry
M Martin
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Other
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Primary Artist
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Katy Perry
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Main Performer
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Producer
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Max Martin
Dr. Luke
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Production