On screen
Cast
59 credited performers
Katy Perry
Self
Shannon Woodward
Self
Rachael Markarian
Self
Artwork unavailable
Mia Moretti
Self
Glen Ballard
Self
Artwork unavailable
Adam Marcello
Self
Artwork unavailable
Casey Hooper
Self
Artwork unavailable
Patrick Matera
Self
Artwork unavailable
Max Hart
Self
Kesha
Self
Artwork unavailable
Joshua Moreau
Self
Artwork unavailable
Lauren Allison Ball
Self
Artwork unavailable
Tasha Layton
Self
Leah Adler
Self
Lockhart Brownlie
Self
Anthony Burrell
Self
Lexie Contursi
Self
Artwork unavailable
Ashley Ashida Dixon
Self
Brandee Evans
Self
Bryan Gaw
Self
Artwork unavailable
Malik Le Nost
Self
Scott Myrick
Self
Artwork unavailable
Cassidy Noblett
Self
Artwork unavailable
Bradford Cobb
Self
Johnny Wujek
Self
Artwork unavailable
Steven Jensen
Self
Artwork unavailable
Todd Delano
Self
Artwork unavailable
Tamra Natisin
Self
Artwork unavailable
Angela Hudson
Self
Artwork unavailable
Ann Hudson
Self
Artwork unavailable
David Hudson
Self
Artwork unavailable
Keith Hudson
Self
Artwork unavailable
Mary Hudson
Self
Artwork unavailable
Mark Hunter
Self
Artwork unavailable
Angelica Cob-Baehler
Self
Artwork unavailable
Jason Flom
Self
Adele
Self
Jessie J
Self
Rihanna
Self
Justin Bieber
Self
Rebecca Black
Self (archive footage)
Alan Carr
Self (archive footage)
Artwork unavailable
Lauren Christy
Self
Darren Criss
Aaron Christopherson (archive footage)
Ellen DeGeneres
Self (archive footage)
Artwork unavailable
Graham Edwards
Self (archive footage)
Whoopi Goldberg
Self
Artwork unavailable
Baz Halpin
Self
Erica Hill
Self (archive footage)
Lucas Kerr
Self
Heidi Klum
Self (archive footage)
Avril Lavigne
Self
Bonnie McKee
Self
Alanis Morissette
Self (archive footage)
Dermot O'Leary
Self (archive footage)
Britney Spears
Self
Artwork unavailable
Scott Spock
Self
Artwork unavailable
Chris Wragge
Self (archive footage)
Russell Brand
Self