Get “Swish Swish” off Katy’s new album ‘Witness’: http://katy.to/witnessYd

Katy Perry Complete Collection on Spotify: http://katy.to/SpotifyCompleteYD
Katy Perry Essentials on Apple Music: http://katy.to/AMEssentialsYD
Watch your favorite Katy videos on YouTube: http://katy.to/MusicVideosYD

Starring Katy Perry, Nicki Minaj, Molly Shannon, Terry Crews, Hafþór Júlíus "Thor" Björnsson, Bill Walton, Rich Eisen, Gatan Matarazzo, Jenna Ushkowitz, Christine Sydelko, Dexter Mayfield, Doug The Pug, Russel “Backpack Kid” Horning, Iris Kyle, Rob Gronkowski, Karl-Anthony Towns, Joey Chestnut, the ladies of GLOW (Sydelle Noel, Britney Young, Kia Stevens, Jackie Tohn), Carter Wilkerson, West Hollywood Cheerleaders, Amanda LaCount, and Nugget as herself.

Director: Dave Meyers
Producer: Nathan Scherr...