Credits
PERFORMING ARTISTS
Katy Perry
Vocals
Max Martin
Programming
Ammo
Programming
Dr. Luke
Programming
Emily Wright
Recorder
Luther Campbell
Programming
Sam Holland
Recorder
COMPOSITION & LYRICS
PRODUCTION & ENGINEERING
Max Martin
Producer
Tim Roberts
Assistant Mixing Engineer
Ammo
Producer
Aniela Gottwald
Assistant Recording Engineer
Brian Gardner
Mastering Engineer
John Hanes
Mixing Engineer
Serban Ghenea
Mixing Engineer
Irene Richter
Producer
Megan Dennis
Producer
Vanessa Silberman
Producer
Emily Wright
Recording Engineer
Luther Campbell
Producer
Sam Holland
Recording Engineer