James Earl Jones, Aaron Neville

Ethan Hawke, Gillian Jacobs, Jose Feliciano

Jack Black, Stephen Dorff

Jason Segel, Hailee Steinfeld

Jeff Bridges, Blyth Danner

Paul Rudd, Jon Lovitz, Aloe Blacc

Ben Stiller, The Miz, Annie Lennox

Bette Midler, Pegi Young

Jessica Alba, Colin Quinn, Evan Wells & Christophe Balestra, Stephen Bishop

Kirsten Dunst, Dee Snider, Maroon 5

Paul McCartney, Nick Cannon

Amy Adams, Mike "The Situation" Sorrentino, Adam Ferrera

Michael C. Hall, Busy Phillips, R. Kelly

Martha Stewart, Gary Dell'Abate, R. Kelly

'SNL' and 'Jack and Jill', Jason Hawes & Grant Wilson, Gwar

Tracy Morgan, Dick Cavett, Kings Of Leon

Bruce Springsteen, Steven Van Zandt

Zach Galifianakis, Danny Boyle, Kid Cudi featuring Cage and St. Vincent

Elvis Costello, Lewis Black,

Tom Selleck, Anthony Bourdain, Trace Adkins

Bill Hader, Victoria Justice, James Otto & Ronnie Milsap

Colin Firth, Terrell Owens, Chad Ochocinco, N.E.R.D.

Jessica Simpson, Gov. Chris Christie, Regina Spektor

Bobby Flay

Jake Gyllenhaal, Scott Caan, Kelli Giddish, Sufjan Stevens

Anne Hathaway, Zachary Levi, Frank Shamrock, the Frames

Amanda Peet, Peter Krause, Rascal Flatts

Bruce Springsteen

Daniel Radcliffe, Quincy Jones, Grinderman

Tracy Morgan, Dick Cavett, Kings of Leon

Jeff Goldblum, Mark Valley, Robyn

Rainn Wilson, Biz Stone & Evan Williams, Carla Gugino, Jonsi

Rosario Dawson, Ty Burrell, Rory Scovel

Scarlett Johansson, Chris Morris, Toots & the Maytals

Lewis Black, Elvis Costello

Dr. Phil McGraw, Nina Dobrev, Duffy

Zach Galifianakis, Danny Boyle, Kid Cudi

Will Arnett, Jason Ritter, Patti LuPone

Jonah Hill, Russell Simmons, Jonathan Richman

Laura Linney

Dana Carvey, Jason Hawes & Grant Wilson, GWAR

Donnie Wahlberg, School of Seven Bells

Joan Rivers, Juliette Lewis, Underworld

Molly Shannon, Paul Scheer, Norah Jones

Edward Norton, Bam Margera, Nick Vatterott

Pee-Wee Herman, Steve-O, Joy Bryant, Ben Folds

Whoopi Goldberg, This Old House experts, My Morning Jacket

Johnny Knoxville, Judah Friedlander, Everest

Donald Trump, Sam Rockwell, Brad

Naomi Watts, Nick Swardson, Alton Brown

Jane Lynch, Emma Roberts, Pete Yorn

Diane Lane, Peter Sagal & Carl Kasell, Fistful of Mercy

Tom Selleck, Anthony Bourdain, Trace Adkins

Morgan Freeman, Josh Lucas, Gayngs

Helen Mirren, Aaron Sorkin, Anthony Jeselnik

Bryan Cranston, Jesse Eisenberg, Joshua Topolsky, The Vaselines

Justin Timberlake, Jann Wenner, Belle & Sebastian

Christopher Meloni, Joanna Garcia, Teenage Fanclub

Susan Sarandon, Andrew Garfield

John Legend

Amy Poehler

Josh Brolin, Ben Rappaport, Jeff Musial, chef Kerry Simon

Tina Fey, Colin Hanks, Merle Haggard

Julianna Margulies, Cory Monteith, Superchunk

Will Arnett, Jason Ritter

Jon Hamm, Amy Ryan

Regis Philbin, Emma Stone

Justin Long, Dr. Mehmet Oz

Christina Ricci, Robert Plant

Nathan Lane, Kris, Kourtney & Kim Kardashian, Chris Gethard

Ali Larter, Mario Batali, Jerry Lee Lewis

Elijah Wood, Maggie Q, Andy Haynes

Ashley Tisdale, Margaret Cho, Robert Randolph

Michael Cera, Landon Donovan, JP, Chrissie and The Fairground Boys

Wendy Williams, Never Shout Never

Rachel Maddow, Jon Glaser, Heart

Anna Wintour, Marc Jacobs, John Cena, a performance from Yo Gabba Gabba

Drew Barrymore, Snoop Dogg, Black Mountain

Parodies inspired by Glee, Lost and more

Gabourey Sidibe, Aubrey Plaza, Bobby Slayton

Mickey Rourke, Kids in the Hall, the Walkmen

Michael Cera, Landon Donovan, JP, Chrissie and The Fairground Boys

Dylan McDermott, Perez Hilton, Slayer

Jason Bateman, Kieran Culkin, China Chow, Menomena

Billy Crudup, Giovanni Ribisi, dancers from

Denis Leary, Connie Britton, Titus Andronicus

Will Ferrell, Tim DeKay, Mike Posner

Samuel L. Jackson, Connie Britton, Spoon

Kathy Griffin, Adam McKay, Trey Songz

Paul Rudd, Jordana Spiro, Green Day

50 Cent, Lucy Punch, Of Montreal

Luke Wilson, Tommy Davidson, Dierks Bentley

Rachel Weisz, Chris Bosh, Angelique Kidjo

Kevin Kline, Chace Crawford, Hanson

January Jones, Susie Essman, Rick Ross

Kevin Connolly, Christina Hendricks, Sheryl Crow

Steve Carell, Selena Gomez, Halestrom

Zach Braff, Jemaine Clement, Crowded House

Horatio Sanz, Widespread Panic

Joseph Gordon Levitt, Piper Perabo, Kurt Metzger

Jennifer Love Hewitt, Matt Bomer, Million Dollar Quartet

Martha Stewart, Jack McBrayer, M.I.A

Nicolas Cage, Jennifer Lawrence, Squeeze

Eddie Izzard, Angie Harmon, Big Boi

Adam Sandler, Oliver Stone, Eminem

David Spade, Beth Stern, MGMT

Heidi Klum, Joshua Topolsky, Macy Gray

Salma Hayek, Jeffrey Donovan, Herbie Hancock

Jada Pinkett Smith, Miranda Cosgrove, Travie McCoy

Kate Walsh,Jim Breuer,The Roots

Seth Meyers,Bethenny Frankel,Blitzen Trapper

Lisa Kudrow,Big Show,The Gaslight Anthem

Cedric the Entertainer, Fred Willard,Broken Social Scene

Joy Behar, Carson Kressley,Gail Simmons

Bradley Cooper, Robin Antin

John C. Reilly, Justin Bartha, Sarah McLachlan

Jessica Biel, Craig Robinson, Phish

Holly Hunter, Lee DeWyze, Circa Survive

Molly Shannon, Chris Colfer, Ian Poulter, Kings of Convenience

Ice Cube, Gemma Arterton, Stars

Ann Curry, Steve & Joann Ward, Reflection Eternal

Jake Gyllenhaal, Mario Cantone, the Black Keys

Kim Cattrall, Frightened Rabbit

Ben Kingsley, Rosemarie DeWitt, Kumail Nanjiani

Donald Trump, Jorge Garcia, Robbie Dupree

Will Forte, Jim Parsons, John DeLucie

Jerry Seinfeld, Jesse Eisenberg, Mike Bender & Doug Chernack, Mumford & Sons

Matthew Fox, Jane Lynch, Ray Wylie Hubbard

Randy Jackson, David Boreanaz, the final three "Survivor" contestants, Public Image Ltd.

A screening of "Stones in Exile"

Sam Rockwell, Phish, Dr. John

Queen Latifah, Sheryl Crow, Chuck Leavell

Evangeline Lilly, Kenan Thompson, Keith Urban, Mike McCready

Kristen Wiig, Green Day, Taj Mahal

Maya Rudolph, Common, Court Yard Hounds

Betty White, Pete Holmes

Joel McHale, Nina Dobrev, Roger Waters, The New Pornographers

Ellen Pompeo, Lea Michele, OK Go

Sarah Silverman, Joan Rivers, Corinne Bailey Rae

Gweneth Paltrow, Colin Quinn, JabbaWockeeZ

Ed Burns, Jackie Earle Haley, Paramore

Michael Caine, Mary Lynn Rajskub, Sharon Jones & The Dap-Kings

Brendan Fraser, Rebecca Hall, The Whigs

Kathie Lee Gifford, Brian Posehn, Gogol Borde

Tracy Morgan, the cast of Diggnation, Ndamukong Suh, the Flaming Lips

Chris Rock, Emma Stone, the Unseen

Michael J. Fox, Green Day, Kaki King

Kelly Ripa, Eric Stonestreet, the Specials

Alan Cumming, Greta Gerwig, Cliff Bleszinski, Baron Vaughn

Jeff Daniels, Olivia Munn, Black Rebel Motorcycle Club

Tina Fey, Justin Bieber, Mario Batali

Rachel Maddow, Dave Annable, Suzanne Vega

Christopher Meloni, Taraji P. Henson, Dr. Dog

Jeff Musial, Bob Costas, James Badge Dale, Peter Wolf with Shelby Lynne

Sam Worthington, Joshua Topolsky, Liquid Liquid

Ricky Gervais, Anthony Mackie, Easton Corbin

Tyler Perry, Dan Dunn's Paint Jam, Drive-By Truckers

Fred Armisen, Chuck Liddell, Moshe Kasher

Jeff Goldblum, Jennifer Morrison, Julian Casablancas

Bryan Cranston, Jill Scott, Morgan Murphy

Liev Schreiber, Rob Corddry, Robert Randolph & Sacred Steel

Ben Stiller, Hoda Kotb, Clientele

Janet Jackson, John Cena, Besnard Lakes

Alicia Silverstone, Mark Valley, Rogue Wave

Ted Danson, Kara DioGuardi, Air

Lucy Liu, Gene Simmons, Universal Record Database

Dakota Fanning, Joseph Fiennes, The XX

Kristen Stewart, The Bee Gees, Dr. Drew Pinsky, The Script

Julianne Moore, Toni Collette, Freeway

Parker Posey, Jason Sudeikis, Vampire Weekend

Michael Moore, Chris Hardwick, Broken Bells

Forrest Whitaker, Rachael Harris, National

Chelsea Handler, Matt Walsh, Allman Brothers

Abigail Breslin, Chris Parnell, Ted Leo

Mike Myers, Matt Lucas, Joanna Newsom

Zack Galifianakis, Mia Wasikowska, Silversun Pickups

Barbara Walters, Regina King, Erykah Badu

Wesley Snipes, Emilie de Ravin, Ludacris

Robert Pattinson, Judah Friedlander, Mario Batali

Benicio Del Toro, Selena Gomez, Kim Kardashian, Reggie Bush, Selena Gomez & the Scene

John Lithgow, Jessica Szohr, Neon Indian

Dick Cavett, Christian Siriano, Yeasayer

Jeff Musial, Bill Paxton, James Van Der Beek, Regina Spektor

Stephen Colbert, Willie Garson, Eric Ripert

Brian Williams, Amanda Seyfried, Sean Patton

Channing Tatum, Aubrey Plaza, Hot Chip

Jessica Alba, Michael Strahan, Harper Simon

Meredith Vieira, Jesse Tyler Ferguson, Motion City Soundtrack

Rosario Dawson, Tony Siragusa, New Kids On The Block

Brendan Fraser, Tracey Ullman, Beach House

Queen Latifah, Rose Byrne, Fela!

Tom Brokaw, Richard Belzer, Kerry Rhodes, Switchfoot

Randy Jackson, Paul Teutul Sr., The Mountain Goats

Ashley Judd, Jimmy Johnson, The Cribs

Kiefer Sutherland, Kerry Washington, Hotrats

Sigourney Weaver, Jeremy Renner, Loudon Wainwright III

Freddie Prinze, Jr., Anthony Anderson, Ke$ha

Ringo Starr

Maggie Gyllenhaal, David Ortiz, Lenny Clarke

Matthew Broderick, Ashley Greene, Nick Jonas and the Administration

Amy Adams, John Oliver, Fela

Ethan Hawke, Gabourey Sidibe, Clipse

Michael Cera, Ana Gasteyer, Shwayze

Bill Hader, Fred Willard, Japandroids