Christina Ricci, Mike 'The Situation' Sorrentino, Paul 'DJ Pauly D' DelVecchio, Vinny Guadagnino, Ronnie Ortiz-Magro, Mariachi El Bronx

45 min

Kelsey Grammer, Octavia Spencer, Lloyd

45 min

Tracy Morgan, Chris Paul, tUnE-yArDs

45 min

Don Cheadle, David Cross, Boyz II Men

45 min

Channing Tatum, Ben Flajnik, Uh Huh Her

45 min

Randy Jackson, Dermot Mulroney, Will Hoge

45 min

Woody Harrelson, Yvonne Strahovski, Rodney Atkins

45 min

Meryl Streep, Stephen Merchant, Kina Grannis

45 min

Katherine Heigl, Ne-Yo, Grouplove

45 min

Will Arnett, Madeleine Stowe, Dana Gould

45 min

Tom Arnold, Keke Palmer, Filter

45 min

Terrence Howard, Thomas Horn, Safetysuit

45 min

Kiefer Sutherland, Bear Grylls, Young the Giant

45 min

Elizabeth Banks, Ben McKenzie, Mindless Behavior

45 min

Cuba Gooding Jr., Sara Hyland, Big Freedia

45 min

Andre Agassi, J.B. Smoove, Seal

45 min

Kate Walsh, Marc Maron, Fishbone

45 min

Martin Scorsese, Kenneth Branagh, Angels and Airwaves

45 min

John Krasinski, Eloise Mumford, Gotye

45 min

Gary Oldman, Tim Heidecker & Eric Wareheim, Korn

45 min

Michelle Williams, Angela 'Big Ang' Raiola, Pitbull

45 min

Antonio Banderas, Damon Wayans Jr., 50 Cent

45 min

Nathan Fillion, Josh Hutcherson, Far East Movement

45 min

Courteney Cox, Mario Manningham & Ahmad Bradshaw, Tony Bennett

45 min

Jeff Goldblum, David Alan Grier, Lana Del Rey

45 min

John Goodman, Kevin Nealon, Robin Thicke

45 min

Sean 'Diddy' Combs, 'Science Bob' Pflugfelder, Miley Cyrus

45 min

Chris Pine, Khloe Kardashian Odom, Puscifer

45 min

Eric Stonestreet, Kate Upton, Jake Owen

45 min

Jessica Alba, Rep. Barney Frank, Nathan Myhrvold, Tower of Power

45 min

Joel McHale, Justin Theroux, Die Antwoord

45 min

After the Oscars Special

45 min

Steven Tyler, Harvey Weinstein, Melanie Fiona

45 min

Maria Menounos; Mat Kearney

45 min

Ed Helms, Leslie Bibb, Wallpaper

45 min

Joan Rivers, Nicki Minaj

45 min

Dr. Phil McGraw; “The Bachelor” runner-up Lindzi Cox; Keane

45 min

Will Ferrell; actress Ellie Kemper; Allen Stone

45 min

Jonah Hill; Busy Philipps; The Crystal Method feat. Martha Reeves

45 min

Channing Tatum; actor Genesis Rodriguez

45 min

Jessica Simpson; Gael García Bernal

45 min

Kristen Bell; actor Ice Cube; KISS performs

45 min

Don Rickles; Amanda de Cadenet; Dr. Teeth and the Electric Mayhem

45 min

Kristin Chenoweth; racecar driver Jimmie Johnson; Neon Trees

45 min

Zooey Deschanel; actor Steven Seagal; Shinedown

45 min

Ashton Kutcher and Justin Bieber; All-American Rejects

45 min

Adam Carolla; professional basketball player Kevin Durant; White Rabbits

45 min

Carson Daly; actress Kristen Schaal

45 min

Seann William Scott; actress Christa Miller; Eli Young Band

45 min

Edie Falco; Amy Schumer

45 min

Jason Biggs; Lionel Richie and Billy Currington

45 min

Anthony Davis; actress Lena Headey; NeedToBreathe

45 min

LL Cool J; actor James Van Der Beek; Josh Baze

45 min

David Spade; Slash feat. Myles Kennedy

45 min

Ashley Judd; director Bobcat Goldthwait; The Civil Wars

45 min

Danny McBride; actress Dianna Agron; The Shins

45 min

Zac Efron; actress Krysten Ritter; Noel Gallagher

45 min

Jennifer Love Hewitt; Chef Georgia Pellegrini; Jason Mraz

45 min

Gabourey Sidibe; Morgan Spurlock; Kasabian

45 min

Julia Louis-Dreyfus; Andy Hoang & Erik Salgado; The Hives

45 min

John Cusack; Vintage Trouble

45 min

Sharon Osbourne; Max Greenfield; LP

45 min

Emily Blunt; Dave Salmoni; Adam Lambert

45 min

Vanessa Williams; Jonny Lee Miller; Andrew Bird

45 min

David Arquette; Civil Twilight

45 min

William H. Macy; Eva Green; Brad

45 min

Scarlett Johansson; Roger Daltrey

45 min

Kristen Stewart; Chloë Grace Moretz; B.o.B.

45 min

Johnny Depp; Casey Wilson; Silversun Pickups

45 min

Steve Harvey; Dev Patel; Glenn Frey

45 min

Dr. Phil McGraw; Carrie Underwood

45 min

Drew Carey; Rita Wilson

45 min

Matthew Morrison; Beth Stern; Delta Spirit

45 min

Kristin Bell; Dax Shepard; Jason Mantzoukas; The Cult

45 min

Kathy Griffin; Emily Maynard; Gavin DeGraw

45 min

Patricia Heaton; Nikolaj Coster-Waldau; Lisa Marie Presley

45 min

Josh Brolin; Bethenny Frankel; Kimbra

45 min

Charlize Theron; Manny Pacquiao; Graffiti6

45 min

Christina Ricci; Chef Adam Perry; fun.

45 min

Andy Samberg; Edward Sharpe and the Magnetic Zeros

45 min

Kim Kardashian, Kourtney Kardashian and Khloe Kardashian Odom; Adam Carolla; K'Naan

45 min

Edward Norton; Leighton Meester; Dead Sara

45 min

Martin Short; Cee Lo Green; Goodie Mob

45 min

Jada Pinkett Smith; Matt Kemp; The Temper Trap

45 min

Sally Field; Kevin Love; Waka Flocka Flame

45 min

Anderson Cooper; Scott Caan; Metric

45 min

Katy Perry; Alex Pettyfer; The Offspring

45 min

Louis C.K.; Zoe Kazan

45 min

Matt LeBlanc; Selma Blair; Linkin Park

45 min

Howie Mandel; Chris Bosh; Linkin Park

45 min

Paul Reubens; Dreama Walker; Marina and the Diamonds

45 min

Gary Oldman; Rob Riggle; The Dirty Heads

45 min

Wanda Sykes; Joel Kinnaman; Serj Tankian

45 min

Billy Crudup; Fred Willard; Grace Potter and the Nocturnals

45 min

Bryan Cranston; Larry King; Zac Brown Band

45 min

Russell Brand; Olivia Munn; Matisyahu

45 min

Kate Beckinsale; Chris Harrison; Rubblebucket

45 min

Charlie Sheen; Nicole 'Snooki' Polizzi; Huey Lewis & Joe Cocker

45 min

Ben Stiller; Emily Maynard; The Head and the Heart

45 min

Jeremy Renner; Aaron Paul; Nas

45 min

Colin Farrell; Rosemarie DeWitt; Trey Songz

45 min

Jessica Biel; Rick Ross

45 min

David Duchovny; Jeff Ross; Alabama Shakes

45 min

Joseph Gordon-Levitt; Rebel Wilson; Good Old War

45 min

Thomas Haden Church; Rick Bayless; JJAMZ

45 min

Jennifer Garner; Paul Scheer; The Fixx

45 min

Tom Arnold; Ashley Greene; The Wood Brothers

45 min

Gordon Ramsay; Jordin Sparks; Andy Grammer

45 min

Robert Pattinson; Rick & Corey Harrison; Poliça

45 min

Kyra Sedgwick; Nick Prueher & Joe Pickett; Josh Doyle

45 min

Jamie Foxx; Cat Deeley; Imagine Dragons

45 min

Bob Newhart; Kevin Hart; Miss Willie Brown

45 min

Matt Stone & Trey Parker; Adam Scott; Everclear

45 min

Lea Michele; Simon Bird; The Avett Brothers

45 min

Dr. Phil McGraw; Dakota Johnson; Rita Ora

45 min

Britney Spears & Simon Cowell; Slightly Stoopid

45 min

Terry Bradshaw; Dave Matthews

45 min

Matthew Perry; Josh Hamilton; Kreayshawn

45 min

Richard Gere; Josh Radnor

45 min

Julie Bowen; Nate Parker; The Afghan Whigs

45 min

Julianna Margulies; Jessie Tyler Ferguson; The Killers

45 min

Melanie Griffith; Kerry Washington; Alanis Morissette

45 min

Keanu Reeves; Ginnifer Goodwin; Green Day

45 min

Selena Gomez; Lenny Venito; Tony Bennett

45 min

Zooey Deschanel; Maggie Grace; Electric Approach

45 min

Ty Burrell; Chris Paul; Psy

45 min

Amy Poehler; Alan Arkin; Garbage

45 min

Zac Efron; Jack Black & Kyle Gass; Tenacious D

45 min

Ben Affleck; Demi Lovato; Ben Howard

45 min

Megan Mullally; Father John Misty

45 min

Will Arnett; Chris Elliott; Dwight Yoakam

45 min

Kevin James; Ezra Miller

45 min

Aziz Ansari; Alana “Honey Boo Boo” Thompson & June “Mama” Shannon; Josh Turner

45 min

Don Rickles; Dancing with the Stars Castoff; Miguel

45 min

Joel McHale; Joe Walsh

45 min

Matthew Fox; Emily VanCamp; Paul Weller

45 min

Russell Peters; Prince

45 min

Axl Rose; Ana Gasteyer; The Whigs

45 min

Michelle Obama; Halle Berry; Ciara

45 min

Kelly Ripa; Alicia Keys

45 min

Howard Stern; Tracy Morgan; Sharon Jones and the Dap-Kings

45 min

David Letterman; Vampire Weekend

45 min

Jon Stewart & Stephen Colbert; The Avett Brothers with the Brooklyn Philharmonic

45 min

Robert Pattinson; Chris Hardwick; Ben Folds Five

45 min

John Goodman; Hayden Panettiere; Machine Gun Kelly

45 min

Kirstie Alley; Dave Salmoni; Tyler Bryant & The Shakedown

45 min

Daniel Craig; Stephenie Meyer; Boys Like Girls

45 min

Jessica Lange; Adam Pally; Game feat. Tyga & Wiz Khalifa

45 min

Christina Applegate; Youngblood Hawk

45 min

Martin Short; Suraj Sharma; Ne-Yo

45 min

Mel Brooks; Jake Tapper; Jason Aldean

45 min

Eric Stonestreet; L.A. Reid; Aimee Mann & James Mercer

45 min

Two Dancing with the Stars Castoffs; Andy Allo

45 min

Tim Allen; Manny Pacquiao; Flo Rida

45 min

Ryan Seacrest; Erin Andrews; Soundgarden

45 min

Reba McEntire; Mike Tyson; Youngblood Future

45 min

Eric Bana; Damian Lewis; Wiz Khalifa

45 min

Ted Danson; Emilia Clarke; Larry g(EE)

45 min

Leslie Mann; Ted; Sarah Jaffe

45 min

John Krasinski; Mike Birbiglia; Atlas Genius

45 min

Zachary Knighton; Dan Deacon

45 min

Hugh Jackman; Jenna Fischer; 2 Chainz

45 min

Samuel L Jackson; Jersey Shore cast; Ed Sheeran

45 min

Eric Stonestreet; L.A. Reid; Aimee Mann and James Mercer

45 min

Jessica Lange; Adam Pally; Game featuring Tyga

45 min