Roulette

Credits

• Ali Payami
  bass, drums (drum set), keyboard, percussion, producer, programming, synthesizer
• Cory Bice
  assistant
• Jeremy Lertola
  assistant
• John Hanes
  engineer
• Katy Perry
  background vocals, lead vocals
• Max Martin
  bass, drums (drum set), keyboard, percussion, producer, programming, synthesizer
• Peter Karlsson
  editor
• Sam Holland
  engineer
• Serban Ghenea
  mix
• Shellback
  background vocals, bass, drums (drum set), keyboard, percussion, producer, programming, synthesizer