Popstar: Never Stop Never Stopping

Will Forte as Bagpipe Player Krystal Ellsworth as Dancer A$AP Rocky as Rakim Mayers Alison Rich as Crazy Fan Robert Roldan as Dancer Chelsea Peretti as Brunette CMZ Reporter Joanna Newsom as Steam Punk Doctor Pink as Pink Akiva Schaffer as Lawrence Dunn James Buckley as Sponge Ringo Starr as Ringo Starr Mike E. Winfield as Hunter's DJ / Hypeman Justin Timberlake as Tyrus Quash (uncredited) Sandra Rosko as Concert Fan (uncredited) Carrie Underwood as Carrie Underwood RZA as RZA Steve Higgins as Steve Higgins Mariah Carey as Mariah Carey Kevin Nealon as Gary Sikes Andre Hyland as Lame Ass Dude Régine Chassagne as Arcade Fire Calvit Hodge as Dancer Brandon Van Vliet as Award Guest (uncredited) Evan Fine as Ten-Year Old Conner Usher as Usher Nicholas Azarian as Quirky Kid Adam Levine as Adam Levine James Poyser as The Roots Carlena Britch as Dancer Amanda Cleghorn as Dancer Ashley Moore as Sarah Joan Cusack as Tilly Will Arnett as Main CMZ Reporter Bill Hader as Zippy Brandon Henschel as Dancer Nikeva Stapleton as Dancer Cameron Brinkman as Roadie (uncredited) Madeleine Wade as Lisa (uncredited) Maya Rudolph as Deborah Edgar Blackmon as Eddie Pharrell Williams as Pharrell Williams Win Butler as Arcade Fire Dave Franco as Co-actor in the movie "Cube Theorem" (uncredited) Imogen Poots as Ashley Wednesday Chris Redd as Hunter Questlove as Ahmir-Khalib Thompson Mario López as Mario López Ithamar Enriquez as Stage Manager Michael Bolton as Michael Bolton Eric André as Dreadlocked CMZ Reporter Danger Mouse as Danger Mouse Jimmy Fallon as Jimmy Fallon Snoop Dogg as Snoop Dogg Jasmine Hester as Conner's Entourage (uncredited) Katy Perry as Katy (uncredited) Danny Strong as Perspective Manipulator Maxwell Jenkins as Ten-Year Old Owen Andy Samberg as Conner Friel Sarah Silverman as Paula Klein Big Boy as Big Boy Seal as Seal Tim Meadows as Harry Duggins Nas as Nas Mike Birbiglia as Blonde CMZ Reporter Paul Scheer as Wolf Handler Walter Jones as Angry Fan Tariq Trotter as The Roots Jorma Taccone as Owen Bouchard Akon as Akon Liz Cackowski as Poppies Producer Dan Castiglione as Dancer Elliott Smith as Ten-Year Old Lawrence DJ Khaled as DJ Khaled Chester Tam as Club DJ Derek Mears as Limo Driver Marielle Heller as Documentary Crew Member Emma Stone as Claudia Cantrell (uncredited) Simon Cowell as Simon Cowell Martin Sheen as Martin Sheen 'Weird Al' Yankovic as Hammerleg Lead Singer Lili Sepe as Teen Girl 1 (uncredited) 50 Cent as 50 Cent T.I. as T.I.

Goro Koyama Foley Artist Zene Baker Additional Editor George H. Anderson Supervising Sound Editor Allison Jones Casting Markus Mentzer First Assistant "A" Camera Brandon Trost Director of Photography Craig Alpert Editor Ramsey Avery Art Direction Jon Billington Production Design Akiva Schaffer Director, Writer, Producer Andy Samberg Writer, Producer Rodney Rothman Producer Judd Apatow Producer Matthew Compton Original Music Composer Steve R. Nelson Sound Mixer Jorma Taccone Director, Writer, Producer