Producer: Charlie Puth - Artist: Katy Perry - Producer: Johan Carlsson - Artist: KANDY - Remixer: KANDY - Vocal Producer: Peter Karlsson - Mixer: Serban Ghenea - Programming: KANDY - Background Vocalist: Charlie Puth - Drum Programming: Charlie Puth - Synthesizer: Charlie Puth - Vocals: Katy Perry - Background Vocalist: Johan Carlsson - Drum Programming: Johan Carlsson - Guitar: Johan Carlsson - Rhodes: Johan Carlsson - Synthesizer: Johan Carlsson - Mastering Engineer: KANDY - Composer/Author: Katy Perry