Today show anchor Matt Lauer; iCarly actress Miranda Cosgrove; Bravo TV executive Andy Cohen; Twisted Sister performs.
Tina Fey, Tom Welling, Twin Shadow
TV-show host Howie Mandel; singer Cee Lo Green; the final three "Survivor" contestants; Randy Newman performs.
TV personality Randy Jackson; chef Mario Batali; Death Cab for Cutie performs; Robert Randolph performs with the Roots.
Kirstie Alley, Jessica Chastain, Robbie Robertson
Actress Jada Pinkett Smith; actor Simon Pegg; Call of Duty: Modern Warfare 3; Givers performs; Ledisi performs with the Roots; Game Week. (457)
Actress Betty White, NASCAR driver Jeff Gordon, Gears of War 3; Ms. Lauryn Hill performs; Game Week. (458)
Comic Larry the Cable Guy; Uncharted 3; Paul Williams performs; Game Week. (459)
Keith Olbermann from "Countdown With Keith Olbermann"; Rosie Huntington-Whiteley from "Transformers: Dark of the Moon"; Battlefield 3; Battles; Game Week. (460)
John C. Reilly from "Terri"; Noah Wyle from "Falling Skies"; The Legend of Zelda: Skyward Sword; Billy Currington; Game Week. (461)
Morgan Freeman; Thomas Lennon; Kemba Walker; Mint Condition. (462)
Cameron Diaz; Charlie Day; Bon Iver; Big Sean sitting in with The Roots. (463)
Elijah Wood; Michael Rapaport; Thurston Moore; Bob Mould sitting in with The Roots. (464)
Selena Gomez. Jon Benjamin; Selena Gomez & The Scene. (465)
Bob Costas; Raven-Symone; Archers of Loaf. (466)
Kid Rock; Emily Rose; Panda Bear (467).
Seth Green; Chris Evans; Chefs Bruce and Eric Bromberg; Nikka Costa sitting in with The Roots (468).
Gabourey Sidibe; Blake Shelton; Joe Jonas (469).
Bob Saget; Neil deGrasse Tyson; James Blake (470).
Marisa Tomei; Billy Ray Cyrus (471).
Mila Kunis; Joshua Topolsky; Wye Oak (472).
Justin Timberlake; Rose Byrne; Emmylou Harris (473).
Ryan Gosling; Andy Cohen; Joseph Arthur (474).
Brooke Shields; JB Smoove; Jeff Musial; Ziggy Marley (475).
Kevin Connolly; Brit Marling; Matt Kirshen (476).
Don Cheadle; The Amazing Kreskin; Ray Davies (477).
Steve Carell; Marc Maron; Matt and Kim (478).
Neil Patrick Harris; Fran Lebowitz; They Might Be Giants (479).
Julianne Moore; Dominic Cooper; Beyonce (480).
Brian Williams; Rashad Evans; Big Sean (481).
Cory Monteith; Lou Dobbs; tUnE-yArDs; (482).
Danny McBride; Dianna Agron; The Sheepdogs (483).
Jason Bateman; Freida Pinto; Tony Bennett; Big Audio Dynamite (484).
Ryan Reynolds; Viola Davis; Fountains of Wayne; Bruce Hornsby sitting in with The Roots (485).
Horatio Sanz; Triple H; Voca People (486).
Rudy Giuliani; Adam Ferrara; My Chemical Romance (487).
Katie Holmes; Joe Bastianich; The Kills (488).
Nicole 'Snooki' Polizzi; Joe Buck; Tig Notaro (489).
Emma Stone; Stephen Moyer, Chef Fabio Viviani (490).
Julia Stiles; Jenni 'JWoww' Farley; Tame Impala (491).
Robert Duvall; Emmanuelle Chriqui; The Cars (492).
Al Roker; Wayde King & Brett Raymer (495).
Denis Leary; Olivia Munn; The Antlers (497).
Marion Cotillard; Nick Swardson; Anthrax (498).
Tom Selleck; Cameron Crowe; Pearl Jam (499).
Sarah Michelle Gellar; Alexander Skarsgard; THE ZOMBIES (501).
Will Arnett; Richard Branson; Girls, John Pizzarelli sits in with The Roots (502).
Joseph Gordon-Levitt; Roger Waters; Foo Fighters (511).
Anna Faris; Michael Emerson; Dwyane Wade; MGMT (512).
Melissa McCarthy; Steven and JoAnn Ward; Dierks Bentley (513).
Claire Danes; Reverend Al Sharpton; Jeff Musial; Pearl Jam (514).
Kathy Bates; Paul Scheer; Sean Parker; Radiohead (515).
Simon Cowell; Laura Dern; Ben Cohen & Jerry Greenfield; Chef Bobby Flay; Daryl Hall is sitting in with The Roots (516).
Shaquille O'Neal; Evan Rachel Wood; Portishead (517).
Hugh Jackman; Rachel Bilson; Jeff The Brotherhood (518).
Paul Giamatti; Alison Brie; Judas Priest (519).
Ice-T; Rich Fulcher; Yo Gabba Gabba (520).
Samuel L. Jackson; Dylan McDermott; Ra Ra Riot (521).
Alan Cumming; Michael Phelps; Chavez (522).
Cedric the Entertainer; Julianne Hough; Joshua Topolsky; The Moody Blues (523).
Matthew Broderick; Mike 'The Situation' Sorrentino; Video Game Demo of 'Batman: Arkham City'; Chefs Bryan and Michael Voltaggio (524).
Eddie Murphy; Drew Carey; Childish Gambino (534).
Anderson Cooper; Armie Hammer; St. Vincent (535).
Michael Moore; Josh Charles; Chromeo (536).
Kathy Griffin; Dominic Cooper; Chef David Chang (537).
Robert Pattinson; Mike White; Reggie Fils-Aime; Hunter Hayes; Preview of the New Legend of Zelda (538).
Adam Sandler; Chris Martin; Beyoncé; Johnny Gill performs with The Roots (539).
Jane Lynch; Ron Howard; Béla Fleck and the Flecktones (540).
Sir Ben Kingsley; Felicity Jones; Tony Bennett (541).
Martin Short; Kermit & Miss Piggy; Michael Stipe (542).
Bill Maher; Ashley Greene; Dierks Bentley (543).
Michelle Williams; Alton Brown; Iliza Shlesinger (544).
Jason Segel; Deepak Chopra; Michele Bachmann; M83 (545).
Howie Mandel; Chloe Grace Moretz; B.o.B. (546).
Jason Schwartzman; Sandra Lee; Rodney Atkins (547).
Betty White; Jack Huston; Diggnation; Jimmy Cliff (548).
Jesse Eisenberg; Piper Perabo; The Dodos and Neko Case (549).
Jeremy Piven; T.I.; Andy Cohen; Hot Chelle Rae (550).
Steve Buscemi; Darrell Hammond; Margot Robbie; Dum Dum Girls (551).
Zac Efron; Method Man; Coldplay; Salaam Redi is sitting in with The Roots (555).