The Amazing World of Gumball: The Musical is an upcoming 1 Hour special of The Amazing World of Gumball and will air on Cartoon Network sometime this fall.
It's the big musical at Elmore Junior High, and a new student, Lily (Voiced by Miranda Cosgrove), is prepared for it. Gumball, Darwin, Lily, and their classmates then meet up with some some famous singers, like Jimmy T (Voiced by Bruno Mars), The I Trons (Voiced by Maroon 5), Wicker Block (Voiced by Coldplay), 3D-CLOP (Voiced by Will.I.Am), RockNHon (Voiced by Kanye West), Jinner TD (Voiced by Katy Perry), Kenny Williams (Voiced by Justin Timberlake), OliD (Voiced by Ke$ha), Sandra Goth (Voiced by Adele), Owen Reynolds (Voiced by Justin Bieber), and Jinxer (Voiced by Mandy Moore), and find out that the musical will be as good as any other musical would be. Meanwhile, Rainbow Factory is facing competition with Sand Works, and Nicole works her way through to take Sand Works Out of Business. Elswhere, Richard and Anais go to a Comedy place, where Richard seems to reunite with some old friends he met in his school years.
About You Now (Sung by Lily, Gumball, and Darwin)
Grenade (Sung by Jimmy T)
Rolling in the Deep (Sung by Sandra Goth, Lily, and Carrie)
Won't Go Home Without You (Sung by The I Trons, Gumball, and Darwin)
Violet Hill (Sung by Wicker Block, Gumball, Darwin, Tobias, and Penny)
Just Can't Get Enough (Sung by 3D-CLOP, Gumball, and Darwin)
Stronger (Sung by RockNHon, Gumball, and Darwin)
Last Friday Night (Sung by Jinner TD, Lily, Gumball, and Darwin)
LoveStoned (I Think That She Knows) (Sung by Kenny Williams, Gumball, and Darwin)
Take It Off (Sung by OliD, Gumball, and Darwin)
Never Say Never (Sung by Owen Reynolds and Nixon (Voiced by Jaden Smith)
I See the Light (A Song from Tangled) (Sung by Jinxer and Winxer (Voiced by Zachary Levi)
Sanctuary (Sung by LilD (Voiced by Gareth Emery), Gumball, and Darwin)
Shoot to Thrill (Sung by Aaron, Gumball, and Darwin)
About You Now (Finale) (Sung by Lily, Gumball, Darwin, and all classmates of Elmore Junior High)
Other Guest Stars:
Jeremy Piven voices Wayne, an employee at the rainbow factory who is somewhat similar to Ari Gold from Entourage. He is the main head of the factory.
Matthew Gray Gubler voices Joel, an employee at the rainbow factory who apparently has a crush on Nicole.
Mark Hamill voices Mr. Tinder, a teacher at Elmore Junior High.
Tim Curry voices Mr. Xevious, a teacher at Elmore Junior High who always plays Xevious, a game by Namco.
Dee Bradley Baker voices W2DX, A Robot who only makes beeping sounds.
Freddy Rodriguez voices Tim Locker, The Ex-Boyfriend of Nicole. He is currently an employee at the Rainbow Factory. He is currently married to Sarah Locker.
Arsenio Hall voices Henry D Newman, A Comedian at the Comedy Wockford and is friends with Richard.
Alfred Molina voices Edward Holt, A Boss who currently works at his own company called Sand Works, a company that is facing competition with Rainbow Factory.
Hayden Panettiere voices Sarah Locker, the wife of Tim Locker and employee at the Rainbow Factory.
Jay Leno voices Dennis J, A Famous Talk Show Host who interviews Miss Simian about the big musical.
Wallace Shawn voices Fred, A Singer at the Comedy Wockford and is friends with Richard.
James Belushi voices Ken, A Singer at the Comedy Wockford and is friends with Richard.
Matthew Lillard voices Duncan, A Employee at the Rainbow Factory and is somewhat friends with Nicole.
Anna Paquin and Adam Sandler voice The Andersons, a Married Couple who work at the Rainbow Factory.
Adrian Grenier voices Ryan, An Employee at the Rainbow Factory.
John Krasinski voices Alan, An Employee at the Rainbow Factory.
Jenna Fischer voices Melissa, An Employee at the Rainbow Factory and wife of Alan.
Zach Galifianakis voices Dennis, A Comedian at the Comedy Wockford and is friends with Richard.
Colin Farrell voices Larry, An Employee at the Rainbow Factory.
Jude Law voices Chris, The Boss of the Rainbow Factory.
Jack Black voices Aaron, A Famous Rock Star who is one of the performers of the Musical.
Alec Baldwin and Jason Bateman voice Jason and Ben, two Employees at Sand Works.
Anderson Cooper voices a News Reporter reporting on the Big Musical
Jim Carrey, Billy Crystal, and Ellen DeGeneres voice employees at Sand Works.
Jake Gyllenhaal voices Jerry, An Employee at the Rainbow Factory.
Bill Maher voices Kevin, An Employee at the Rainbow Factory.
Justin Long voices Jeremy, An Employee at the Rainbow Factory
Seth Green and Mila Kunis voice a couple who work at Sand Works.
Breckin Meyer voices Maxwell, An Employee at Sand Works.
Tina Fey voices Jennifer, An Employee at Rainbow Factory.
Shia LaBeouf and Elijah Wood voice Jarrod and Gregory, two employees at Rainbow Factory.
Paul Rudd, Steve Carell, Joseph Gordon-Levitt, Garrett Hedlund, Ryan Reynolds, Freddie Highmore, Jason Schwartzman, and Seth Rogen voice the Rainbow Factory Inspectors, a group of employees and inspectors who work at the Rainbow Factory.
Jeremy Renner, Ricky Gervais, and Larry David voice The 3 Coopers, 3 Employees who work at Rainbow Factory.