Artist: Katy Perry - Producer: StarGate - Remixer: Tiësto - Featuring: Aitana - Mix Engineer: John Hanes - Mixer: Serban Ghenea - Programming: Tiësto - Vocals: Aitana - Vocals: Katy Perry - Programming: Mikkel S. Eriksen - Programming: Tor Hermansen - A&R: Chris Anokute - A&R: Lauren Glucksman - Engineer: Mikkel S. Eriksen - Engineer: Thomas Warren - Mastering Engineer: Dave Kutch - Composer/Author: Ferras Alqaisi