Witness HD

Provided to YouTube by Universal Music Group Witness · Katy Perry Witness ℗ 2017 Capitol Records Released on: 2017-06-09 Producer, Associated Performer, Background Vocalist, Programming, Percussion: Max Martin Producer, Associated Performer, Drums, Bass Guitar, Piano, Acoustic Guitar, Programming, Synthesizer, Percussion: Ali Payami Studio Personnel, Engineer: Sam Holland Studio Personnel, Asst. Recording Engineer: Cory Bice Studio Personnel, Asst. Recording Engineer: Jeremy Lertola Studio Personnel, Editor: Peter Karlsson Studio Personnel, Mixer: Serban Ghenea Studio Personnel, Mix Engineer: John Hanes Associated Performer, Vocals: Katy Perry A & R: Lauren Glucksman Composer Lyricist: Katy Perry Composer Lyricist: Max Martin Composer Lyricist: Savan Kotecha Composer Lyricist: Ali Payami Auto-generated by YouTube.