Seth Rogen, Lea Michele and musical guest Jack White

Tom Hanks, Jack McBrayer and musical guest Soundgarden

Jon Hamm, Charlyne Yi and musical guest Fistful of Mercy

Michael Cera, Julie Bowen and comedian Jon Dore

LL Cool J, B.J. Novak and musical guest Sharon Jones & The Dap-Kings

Harrison Ford, Rosario Dawson and comedian Reggie Watts

Russell Brand, Susan Casey and musical guest The 88

Jesse Eisenberg, Venus Williams and musical guest The Decemberists

Christina Aguilera, Zachary Levi

Christina Applegate, Patton Oswalt and musical guest Maroon 5

Eva Mendes, Bob Saget and musical guest Neon Trees

Jim Parsons, Marisa Miller and comedian Brendon Walsh

George Lopez, Chris Colfer and musical guest Scott Mescudi

Charles Barkley, Dr Drew Pinksy and comedian Bo Burnham

Joel McHale, Tim Gunn and musical guest Cake

Kim, Kourtney and Khloe Kardashian, Kevin Nealon and musical guest Deerhunter

Nicole Kidman, Charlie Day and musical guest Lauren Pritchard

Rainn Wilson, Roberta Mancino and musical guest Christina Perri

Ray Romano, Arianna Huffington

Sarah Silverman, Michio Kaku and musical guest She & Him

Gwyneth Paltrow, T.J. Miller and musical guest Jimmy Eat World

Seth Green, Tim Meadows and musical guest Broken Bells

Amy Adams, Roger Waters and musical guest Edward Sharpe & The Magnetic Zeros

Mark Wahlberg, Charles Phoenix and musical guest Jenny & Johhny

Aaron Eckhart, Mary Lynn Rajskub and musical guest Beach House

Kevin Spacey, Kristen Schaal and musical guest Los Lobos

Jack Black, Erika Nelson and musical guest Jimmie Vaughan

Jason Segel, Shane Smith and comedian Reggie Watts

Adam Sandler, Donald Glover and musical guest Guster

Javier Bardem, Rashida Jones and musical guest Steel Train

Denis Leary, Ice Cube and comedian Tim Minchin

Ricky Gervais, Kaitlin Olson and musical guest Cheap Trick

Cameron Diaz, Dax Shepard and musical guest My Chemical Romance

Jennifer Garner, Gabriel Iglesias and musical guest Social Distortion

Natalie Portman, Chris Pratt and musical guest Keyshia Cole

William H Macy, Marc Maron and musical guest Aloe Blacc

Larry King, Shaun White and musical guest Iron and Wine

Steven Ho, Patton Oswalt and musical guest Wanda Jackson

Jon Cryer, Nick Thune and musical guest Motorhead

Jane Lynch, Joe Buck and musical guest The Ghost of a Saber Tooth Tiger

Amy Poehler, Tim and Eric and musical guest Randy Rogers Band

Jennifer Aniston, Nick Offerman and musical guest Peter Bjorn and John

Kobe Bryant, Camilla Belle and comedian Jamie Kilstein

Lisa Kudrow, Mike O'Malley and musical guest Interpol

Jeff Bridges, Nick Swardson and musical guest Far East Movement

Craig Ferguson, Kevin Hart and musical guest Red

Curtis '50 Cent' Jackson, Chris Elliott and musical guest Ray LaMontagne

Seth MacFarlane, Brooklyn Decker and comedian Dana Gould

Justin Bieber, Claire Smith and musical guest The Black Keys

Martin Lawrence, Fred Armisen and comedian Reggie Watts

Martin Short, Chris Bosh and musical guest Nicole Atkins

Ed Helms, Carmelo Anthony and musical guest Chromeo

Matthew Perry, Mike Sorrentino and musical guest Jason Aldean

Jason Sudeikis, Brandon T. Jackson and musical guest G-Love

Cory Monteith, Stephen Merchant and comedian Kumal Nanjiani

Marisa Tomei, Harland Williams and musical guest Fitz & The Tantrums

Piers Morgan, Emmy Rossum and comedian Nick Griffin

Chelsea Handler, Anthony Mackie and musical guest Mavis Staples

Emily Blunt, Martha Stewart and musical guest Taio Cruz

Seth Green, Mike Tyson and musical guest Travis Barker

Nigel Marven, Gary Oldman and musical guest Drive-by Truckers

Pee-Wee Herman, Edmund Morris and comedian Shane Mauss

Seth Rogen, Brittany Snow and musical guest Lykke Li

Sarah Silverman, Biz Stone and comedian Pete Holmes

Eric Stonestreet, Sarah Chalke and musical guest Teddy Thompson

Vanessa Hudgens, Mike Mizanin and musical guest Grace Potter

Jake Gyllenhaal, Randy Jackson and musical guest Panic! at the Disco

Paul Giamatti, Olivia Munn and musical guest Little Big Town

Greg Kinnear, Steve Schirripa and comedian Mo Mandel

Johnny Knoxville, Kaley Cuoco and musical guest Thompson Square

Russell Brand, Kloe Kardashian and comedian Roy Wood Jr

Tracy Morgan, Charlyne Yi and musical guest Infantree

Danny McBride, Jeremy Wade and musical guest OneRepublic

Jack McBrayer, Colin Quinn and musical guest Hanson

Chris O Donnell, Lil' John and musical guest PJ Harvey

Gordon Ramsay, Hayden Panettiere and comedian Ryan Stout

Dax Shepard, Anthony Anderson and musical guest The Kills

Matthew Morrison, Alexis Bledel and musical guest Queens of the Stone Age

Emma Roberts, Damon Wayans Jr and musical guest Scala & Kolacny Brothers

Tina Fey, Dr. Sanjay Gupta and musical guest Plan B

Tyler Perry, Morgan Spurlock and musical guest The Strokes

Reese Witherspoon, Joseph Gordon-Levitt and musical guest The Head and the Heart

Will Ferrell, Paul Bettany and musical guest James Blunt

Steve Martin, Atticus Shaffer

Eva Mendes, Dan Dunn and musical guest The Belle Brigade

John Krasinski, Blake Griffin and comedian Ian Edwards

Demetri Martin, Kat Dennings and musical guest Amos Lee

Zach Braff, Judd Apatow and comedian Al Madrigal

Jon Hamm, Miranda Kerr and musical guest Ke$ha

Magic Johnson, Maggie Q and comedian Jen Kirkman

Zach Galifianakis, Sig Hansen and musical guest Raphael Saadiq

Norm Macdonald, Todd Phillips and musical guest The Joy Formidable

Bradley Cooper, Chris O'Dowd and comedian Jimmy Carr

Ken Jeong, Rebel Wilson and musical guest Yeasayer

Topher Grace, Melissa McCarthy and musical guest Beardyman

Dave Salmoni, Kevin Nealon and musical guest Ben Harper

Dana Carvey, Mike Zohn and Evan Michelson and musical guest Tinie Tempah

Ice-T, Breckin Meyer and musical guest Flogging Molly

Flavor Flav, Curtis Stone and comedian Tim Minchin

Steven Ho, Peter Sarsgaard and musical guest Death Cab for Cutie

George Lopez, Gary Dell'abate and musical guest Jessie and the Toyboys

Noah Wyle, Riley Griffiths and comedian Anthony Jeselnik

Jeff Garlin, Sarah Vowell and musical guest The Airborne Toxic Event

Tom Arnold, Mike Birbiglia and musical guest Redlight King

Ryan Reynolds, Simon Pegg and comedian Kyle Kinane

Neil Patrick Harris, Emily Mortimer and comedian Tom Segura

Larry the Cable Guy, Cat Deeley and comedian Reggie Watts

Gabourey Sidibe, Rob Corddry and musical guest Alison Krauss & Union Station

Adam Levine, Nick Kroll and musical guest My Morning Jacket

Jason Sudeikis, D.J. Qualls and musical guest Ke$ha

Elijah Wood, Leslie Bibb and musical guest Gillian Welch

Liv Tyler, Mark-Paul Gosselaar and comedian Jon Dore

Tom Hanks, Myron Nixon

Bryan Cranston, Chris Hardwick and musical guest Edward Sharpe and the Magnetic Zeros

Seth Green, Marc Maron and musical guest Tedeschi Trucks Band

Justin Timberlake, Jon Ronson and comedian Myq Kaplan

Lisa Kudrow, Rhett & Link and comedian Nate Bargatze

Emma Stone, Jon Benjamin and musical guest K.T. Tunstall

Adrian Grenier, Tom Felton and comedian Steve Byrne

Kevin Connolly, Jeff Lewis and musical guest Funeral Party

Jon Favreau, Jayma Mays and musical guest Brett Dennen

Harrison Ford, Marisa Miller and musical guest Pitbull

Shaquille O'Neal, Brian Posehn and musical guest Seether

Olivia Wilde, Novak Djokovic and comedian Russell Howard

Jason Bateman, Noah Ringer and comedian Ron Funches

Piers Morgan, J.B. Smoove and musical guest Imelda May

James Franco, Nick Swardson

Aziz Ansari, Mike Sorrentino and comedian Nate Bargatze

Denis Leary, Sheamus O'Shaunessy and musical guest Keb' Mo'

Kathy Griffin, Christopher Mintz-Plasse and musical guest Trombone Shorty and Orleans Avenue

Anne Hathaway, Jason Momoa and comedian Sean O'Connor

Paul Rudd, Jessica Chastain and musical guest Vanessa Carlton

Louis C.K., Jim Sturgess and comedian Hugh Moore

Kevin Nealon, Aubrey Plaza and musical guest Lindsey Buckingham

Don Johnson, Busy Phillips and musical guest Band of Horses

Charlie Day and musical guest Foo Fighters

Howie Mandel, Floyd Mayweather and musical guest Alexander

Roseanne Barr, Pauly Del Vecchio and comedian Baron Vaughn

Tyra Banks, Glenn Howerton and comedians The Sklar Brothers

Ashton Kutcher, Jeb Corliss and musical guest Foo Fighters

Ryan Gosling, Nicole Scherzinger and comedian Tig Notaro

Simon Baker, Bryce Dallas Howard and comedian Maria Bamford

Jim Parsons, Chris Pratt and musical guest Grouplove

Jonah Hill, John Noble

Taylor Lautner, Kevin Hart and comedian Neal Brennan

Marisa Tomei, Carey Wilson and comedian Joe Mande

Seth Rogen, Scott Mescudi and musical guest Daryl Hall

Patton Oswalt, Ruth England & Mykel Hawke and musical guest Portugal. The Man

Ty Burrell, Jillian Michaels and musical guest Ryan Adams

Will Arnett, Deepak Chopra and comedian Brent Weinbach

Steven Ho, Michael C. Hall and comedian Gary Gulman

Sarah Michelle Gellar, Simon Helberg and musical guest Dropkick Murphys

Kaley Cuoco, Dr. Drew Pinsky and musical guest Mayer Hawthorne

Ray Liotta, Jose Andres and comedian Tommy Johnagin

Tom Selleck, Julianne Hough and musical guest All Time Low

Jesse Tyler Ferguson, Steve Harvey and comedian Amy Schumer

Chris Colfer, Charlyne Yi and comedian Matt Braunger

Zach Galifianakis, Aaron Paul and musical guest Switchfoot

Jane Lynch, Paul Scheer and musical guest Allen Stone

Hugh Laurie, Kari Byron and comedian T.J. Miller

New York City - Jimmy Fallon and comedian Reggie Watts

New York City - Hugh Jackman and musical guest Cobra Starship

New York City - Matthew Broderick and musical guest Paul Simon

New York City - Louis C.K. and Triumph the Insult Comic Dog