Seth Meyers, Kim Wayans, the Muppets

Jerry O'Connell, Simon Pegg, Jeff Musial, the Rockettes

Louis C.K., Paula Patton

Tom Cruise, Joshua Topolsky, Rufus Wainwright

Jeremy Renner, Rooney Mara, Michael Lindsay-Hogg, Carole King

Charlize Theron, Aretha Franklin

Ralph Fiennes, Shailene Woodley

Zac Efron, Method Man, Coldplay, Salaam Redi

Sarah Jessica Parker, Patton Oswalt

Steve Martin, Emily VanCamp, Snoop Dogg, Wiz Khalifa

Maya Rudolph, Damian Lewis, John Besh

Steve Buscemi, Darrell Hammond, Margot Robbie, Dum Dum Girls

Jeremy Piven, T.I., Hot Chelle Rae

Jesse Eisenberg, the Dodos, Neko Case

Betty White, Jack Huston, Diggnation, Jimmy Cliff

Jason Schwartzman, Sandra Lee, Rodney Atkins

Howie Mandel, Chloe Grace Moretz, B.o.B.

Jason Segel, Deepak Chopra, Michele Bachmann, M83

Michelle Williams, Alton Brown, Iliza Shlesinger

Bill Maher, Ashley Greene, Dierks Bentley

Martin Short, Kermit & Miss Piggy, Michael Stipe

Sir Ben Kingsley, Felicity Jones, Tony Bennett

Jane Lynch, Ron Howard, Béla Fleck and the Flecktones

Adam Sandler, Chris Martin, Beyoncé

Robert Pattinson, Mike White, Reggie Fils-Aimé, Hunter Hayes

Kathy Griffin, Dominic Cooper, Chef David Chang

Michael Moore, Josh Charles, Chromeo

Anderson Cooper, Armie Hammer, St. Vincent

Eddie Murphy, Drew Carey, Childish Gambino

Kirsten Dunst, Chris Hardwick, Air Supply

Billy Bob Thornton, Taraji P. Henson, Dave Stewart

Tracy Morgan, Mario Batali, Pablo Francisco

Heidi Klum, Bill Burr, Lindsey Buckingham

Justin Timberlake, Michael Pena, Kelly Clarkson, Nile Rodgers

Eva Longoria, Kal Penn, GWAR

Salma Hayek, Elizabeth Olsen, Cyndi Lauper

Abigail Breslin, Jimmie Johnson, Jeff Musial, Blitzen Trapper

Naomi Watts, Brian Grazer, Beirut

Matthew Broderick, Mike 'The Situation' Sorrentino, Video Game Demo of 'Batman: Arkham City', Chefs Bryan and Michael Voltaggio

Cedric the Entertainer, Julianne Hough, the Moody Blues

Alan Cumming, Michael Phelps, Chavez

Samuel L. Jackson, Dylan McDermott, Ra Ra Riot

Ice-T, Rich Fulcher, Yo Gabba Gabba!

Paul Giamatti, Alison Brie, Judas Priest, Joe Jonas

Hugh Jackman, Rachel Bilson, Jeff the Brotherhood

Shaquille O'Neal, Evan Rachel Wood, Portishead

Simon Cowell, Laura Dern, Ben Cohen & Jerry Greenfield, Bobby Flay, Daryl Hall

Kathy Bates, Paul Scheer, Sean Parker, Radiohead

Claire Danes, Rev. Al Sharpton, Jeff Musial, Pearl Jam

Melissa McCarthy, Steven & JoAnn Ward, Dierks Bentley

Anna Faris, Michael Emerson, Dwyane Wade, MGMT

Joseph Gordon-Levitt, Roger Waters, Foo Fighters

Andy Samberg, Elmo, Nick Mason, the Shins

Taylor Lautner, Florence Henderson, Beyonce

Julianna Margulies, Wyatt Cenac, Telekinesis

Jonah Hill, Whitney Cummings, Elbow

Dana Carvey, Demi Lovato, Clap Your Hands Say Yeah

Kate Bosworth, Paul Wesley

Zooey Deschanel, Jason 'Mayhem' Miller

Greg Kinnear, Neon Indian, Trombone Shorty

Will Arnett, Richard Branson, Girls, John Pizzarelli

Sarah Michelle Gellar, Alexander Skarsgard, the Zombies

Lauren Graham, Joel Edgerton, Pearl Jam

Tom Selleck, Cameron Crowe, Pearl Jam

Marion Cotillard, Nick Swardson, Anthrax

Denis Leary, Olivia Munn, the Antlers

Jason Sudeikis; Deena Cortese; Jon Rineman

Al Roker; Wayde King & Brett Raymer

Christina Ricci, Jim Gaffigan, Jeff Musial, Kirk Franklin

Will Forte, Amy Sedaris, Stephen Malkmus & the Jicks, Killer Mike

Robert Duvall, Emmanuelle Chriqui, The Cars

Julia Stiles, Jenni 'JWoww' Farley, Tame Impala

Emma Stone, Stephen Moyer, Chef Fabio Viviani

Nicole 'Snooki' Polizzi, Joe Buck, Tig Notaro

Katie Holmes, Joe Bastianich, the Kills

Rudy Giuliani, Adam Ferrara, My Chemical Romance

Horatio Sanz, Triple H, Voca People

Ryan Reynolds, Viola Davis, Fountains of Wayne, Bruce Hornsby

Jason Bateman, Freida Pinto, Big Audio Dynamite

Danny McBride, Dianna Agron, The Sheepdogs

Cory Monteith, Lou Dobbs, tUnE-yArDs

Brian Williams, Rashad Evans, Big Sean

Julianne Moore, Dominic Cooper, Beyonce

Neil Patrick Harris, Fran Lebowitz, They Might Be Giants

Steve Carell, Marc Maron, Matt & Kim

Don Cheadle, the Amazing Kreskin, Ray Davies

Kevin Connolly, Brit Marling, Matt Kirshen

Brooke Shields, Jeff Musial, Ziggy Marley

Ryan Gosling, Andy Cohen, Joseph Arthur

Justin Timberlake, Rose Byrne, Emmylou Harris

Mila Kunis, Joshua Topolsky, Wye Oak

Marisa Tomei, Billy Ray Cyrus

Bob Saget, Neil deGrasse Tyson, James Blake

Gabourey Sidibe, Blake Shelton, Joe Jonas

Seth Green, Chris Evans, Bruce & Eric Bromberg, Nikka Costa

Kid Rock, Emily Rose, Panda Bear

Bob Costas, Raven-Symone, Archers of Loaf

Selena Gomez, Jon Benjamin, Selena Gomez & The Scene

Elijah Wood, Michael Rapaport, Thurston Moore, Bob Mould

Cameron Diaz, Charlie Day, Bon Iver, Big Sean

Morgan Freeman, Thomas Lennon, Kemba Walker, Mint Condition

John C. Reilly, Noah Wyle, Billy Currington, A demonstration by Nintendo

Keith Olbermann, Rosie Huntington-Whiteley, Battles, A demonstration of Battlefield 3

Larry the Cable Guy, Paul Williams, A demonstration of Uncharted 3

Betty White, Jeff Gordon, Lauryn Hill, A demonstration of Gears of War 3

Jada Pinkett Smith, Simon Pegg, Givers, Ledisi, Video Game Week kicks off with a demonstration of Modern Warfare 3

Jason Lee, Emma Roberts, Julian McCulough, DJ Quik

Kirstie Alley, Jessica Chastain, Robbie Robertson

Glenn Close, Zoë Kravitz, Jeff Musial, Joe Jackson

Larry King, Kourtney Kardashiadn & Khloé Kardashian Odom, My Morning Jacket

Kathie Lee Gifford, Jason Earles, Mogwai, Zakk Wylde

John Rich; 'Stone Cold' Steve Austin; Marcela Valladolid, Dennis Coffey

James McAvoy, Gilbert Godfrey, Amos Lee

Lucy Liu, Justin Tuck, Wavy Gravy, David Crosby & Graham Nash

Ed Helms, Andy Rannells, The Cars

Queen Latifah, Matt Bomer, Bon Iver

Jim Belushi, Jennifer Lawrence, Fleet Foxes

Ellen Barkin, Chris Hardwick, Chef Michael Schlow

Jim Parsons, Mireille Enos, the Head & the Heart

Randy Jackson, Mario Batali, Death Cab for Cutie, Robert Randolph

Howie Mandel, Cee Lo Green, Randy Newman

Kristen Wiig, Chris Colfer, Lenny Kravitz

Maya Rudolph, Nick Offerman, Lauryn Hill

Keith Richards, Paul Bettany, Jennifer Hudson & Jakob Dylan

Keira Knightley, John McEnroe, Chris Cornell

Chelsea Handler, Josh Gad, Ziggy Marley

Edie Falco, Carmelo Anthony, Michael Symon

Tina Fey, Tom Welling, Twin Shadow

Alec Baldwin, Maggie Q, Louis Katz

Whoopi Goldberg, Elmo, Jennfer Hudson

LL Cool J, Judd Apatow, Ambrosia

Eva Mendes, Aretha Franklin

Ice-T, Paula Patton, Tim McGraw

Seth Meyers, Elvis Duran, Dispatch, Robert Glasper

Matt Lauer, Miranda Cosgrove, Andy Cohen, Twisted Sister

Daniel Radcliffe, Aly Michalka, Darius Rucker

Uma Thurman, Anthony Anderson, Marcus Samuelsson, Saigon

Helen Mirren, Damon Wayans Jr., Paul Simon

Jennifer Garner, Donald Glover, Paul Simon

Keanu Reeves, Lorraine Nicholson, Wire, Booker T. Jones

James Franco, Maria Menounos, Booker T. Jones

Magic Johnson, the Lonely Island, Joey Kola

Elton John, James Marsden, Duran Duran

Russell Brand, Gayle King, the Strokes

Liv Tyler, Jerry Weintraub, Copyright Criminal All-Stars

Jeff Musial, David Schwimmer, Brock Lesnar & Vanilla Fudge

Billy Crudup, Martha Plimpton, Reggie Fils-Aimé, Cut Copy

Rachel Maddow, Tres Mts.

Trey Parker & Matt Stone, Geoffrey Canada & Friendly Fires

Brian Williams, Dwight Howard & Richard Ashcroft

Kiefer Sutherland, Emily Browning, Little Dragon

Bradley Cooper, Robert De Niro, Pauley Perrette, Marcel Vigneron

Howard Stern, Penn & Teller & Leon Russell

Amy Poehler, Tiger Woods

Ted Danson, Kenny Rogers

Tyra Banks, Holt McCallany, the Chieftains

Kathy Bates, Chris Pratt, Lupe Fiasco

Miley Cyrus, Michael Stipe, Lykke Li

Abigail Breslin, Mike Tyson, Motorhead

Isla Fisher, Josh Radnor, Dan St. Germain

Topher Grace, Jim Gaffigan, Glasser

Jason Sudeikis, Amber Heard, Cyril Renaud

Nicole 'Snooki' Polizzi, Martin Bashir, Laurie Anderson

Liza Minnelli, Anthony Mackie, Joshua Topolsky & Bell Biv Devoe

Jeremy Irons, Peter and Bobby Farrelly, Destroyer

Ann Curry, Patrice O'Neal, Raekwon ft. Ghostface Killah

William H. Macy, Dan St. Germain

Forest Whitaker, Brandon T. Jackson, Felicia Day, Odd Future

Victoria Beckham, Jeff Probst, Joe Mauer, Drive By Truckers

January Jones, Mike Birbiglia, Greyson Chance

Adam Sandler, Aziz Ansari, Mike Gordon

Jennifer Aniston, Piers Morgan

Annette Bening, Nick Swardson, Les Stroud, Cowboy Junkies

Kevin Nealon, Timothy Olyphant, Little Big Town

Brooke Shields, Alex Pettyfer, Gail Simmons, ...And You Will Know Us by the Trail of Dead

Kate Walsh, Rob Brydon, Lissie

Dana Carvey, Minka Kelly, Ricky Martin

Samuel L. Jackson, Larry the Cable Guy, Phantogram

Ice Cube, Leighton Meester, Todd Rundgren

Bill Paxton, Adam Scott, Edie Brickell

David Duchovny, Greta Gerwig & Tyler Florence

Ashton Kutcher, Fred Armisen, Dismemberment Plan

Betty White, Stephen Merchant & Ariel Pink's Haunted Graffiti

Steven Tyler, Chace Crawford & Two Door Cinema Club

Candice Bergen, Ginnifer Goodwin & Colin Jost

Donald Trump, Bobby Moynihan & Neon Trees

Paul Giamatti, Faith Hill, Cake

Jennifer Connelly, Jerry O'Connell, Tom Tom Club

Winona Ryder, Regina King, Okkervil River

Michelle Williams, Patton Oswalt, Daniel Holzman and Michael Chernow

Jimmy Carrey, Dr. Oz & Iron & Wine

Tim McGraw, Emmy Rossum, Ghost of a Saber-Tooth Tiger

Kevin Spacey, DJ Pauly D, Local Natives

Gwyneth Paltrow, Wyatt Cenac and Jeff Musial, Best Coast