Ron Howard, Nicole "Snooki" Polizzi, Sick Puppies
Queen Latifah, Gustavo Dudamel, Jazmine Sullivan
Jamie Foxx, Leighton Meester
Hilary Swank, Jesse Eisenberg, Los Lobos
Jim Parsons, Hailee Steinfeld, Lukas Nelson
Jennifer Lopez, Ryan Seacrest, Steven Tyler
Bill Maher, the Duke Spirit
Seth Rogen, Ted Williams, Bettye Lavette
Cameron Diaz, Eric Stonestreet
Michael Douglas, Julie Scardina
Gordan Ramsay, Kathleen Madigan, Maroon 5
Ashton Kutcher, Aubrey Plaza, Neon Trees
Amy Poehler, Mike "The Situation" Sorrentino
Ben Affleck, the Decemberists
Kathie Lee Gifford, Hoda Kotb
Dana Carvey, Maggie Q, Lizz Wright
Jason Statham, Melissa McCarthy, White Lies
Annette Bening, Frank Caliendo, Amos Lee
Kathy Bates, Brad Womack, Billy Currington
Justin Bieber, Jay Mohr, the Band Perry
Coming soon...
Coming soon...
Coming soon...
Coming soon...
Coming soon...
Mark Wahlberg, James Blunt
Javier Bardem, Paula Abdul, Merle Haggard
Matt LeBlanc, Ricky Martin
Rob Lowe, Amber Riley, Nicki Minaj
Gayle King, the Black Keys
Lady Gaga, Sofia Vergara, John Legend
Liam Neeson, Dave Salmoni, Gretchen Wilson
Charles Barkley, Jenni "JWoww" Farley, Red
Jenna Fischer, Abigail Breslin
Mark Harmon, Dwight Howard, 30 Seconds to Mars
TBA
Owen Wilson, Rachel Maddow, Anberlin
Nick Swardson, Travie McCoy
Meredith Vieira, DJ Pauly D
Emily Blunt, Jackson Murphy, Darlene Love
Christina Appelgate, John Fulton, Michael Franti
Matt Damon, Betty White, Cake
Simon Cowell, Jeff Gordon, Travis Barker
Jerry Seinfeld, Bailee Madison, Darlene Love
Aaron Eckhart
Jane Lynch, Chris Matthews, Avril Lavigne
Wanda Sykes, Simon Pegg, Juanes
Matthew McConaughey, Rizwan Manji
Rainn Wilson, Epic Meals with Harley Morenstein & Sterling Toth, Serj Tankian
Robert Pattinson, Whitney Cummings, Alice Cooper
Zachary Levi, Lisa Lampanelli, Raphael Saadiq
Julie Scardina, Rebecca Black, Duran Duran
Carol Burnett, Jason Ritter, Keith Urban
Kirstie Alley, Peter, Bjorn & John
Jennifer Hudson, William H. Macy
Russell Brand, Lorraine Nicholson, Los Lonely Boys
Howie Mandel, Zachary Gordon, Dierks Bentley
Helen Hunt, Sammy Hagar, Good Charlotte
Kourtney & Kim Kardashian, Fareed Zakaria, Mary Mary
Vin Diesel, Ashley Tisdale, Scissor Sisters
Tracy Morgan, Neve Campbell, Augustana
Dwayne Johnson, Bethany Hamilton, Fitz & the Tantrums
Matthew Morrison, Carrie Underwood
Emma Roberts, Gary Busey, Jeff Beck with Imelda May
David Arquette, Ben Bailey, Far East Movement
Jamie Foxx, Jesse Heiman, k.d. lang
Kristen Bell, Austin "Chumlee" Russell, Sara Evans
Diane Lane, Chris Jericho, Jessie J
Tyler Perry, Kendra Wilkinson, Bright Eyes
John Travolta, Eliza Doolittle
Christina Aguilera, Paul Reiser, Alison Krauss & Union Station featuring Jerry Douglas
Kristin Chenoweth, Jillian Michaels, the Airborne Toxic Event
Rene Russo, Kevin Hart, Buddy Guy
Chelsea Handler, Judd Apatow, OK Go
Rob Lowe, Moby
Paul Walker, Donny & Marie Osmond
Penelope Cruz, Maria Bamford, Ricky Martin
Kate Hudson, Chris Hemsworth, Sergio Mendes with Siedah Garrett
Katie Couric, Ralph Macchio, Priscilla Ahn
Steven Tyler, the Civil Wars
Jennifer Lopez, Chris Colfer, BC Jean
Julie Scardina, Ginnifer Goodwin, Def Leppard
Dick Van Dyke, Khloe Kardashian & Lamar Odom, Steve Earle
Norm Macdonald
Jodie Foster, Ken Jeong, Rodrigo y Gabriela
Eva Mendes, storm chaser Reed Timmer, Tedeschi Trucks Band
Ryan Seacrest, Jordana Brewster, TV on the Radio
Ed Helms, Chelsea Kane, Iron & Wine
Jack Black, Mike Huckabee, Parachute
Kirstie Alley, Il Volo
Dustin Hoffman, the Script
Meredith Vieira, Ben Harper
Foster the People
Piers Morgan, the winner of "American Idol"
Paris Hilton, Dhani Jones, INXS with Pat Monahan
Katie Couric, Cee-Lo Green
Kevin Bacon, Bethenny Frankel, OneRepublic
Jada Pinkett Smith, Elle Fanning, Lenka
Jim Carrey, Selena Gomez, Tinie Tempah
Bill Cosby, Kris & Bruce Jenner, Neon Trees
Jason Sudeikis, Adam Levine, Ziggy Marley
Kim Kardashian, Lior Suchard, Randy Travis with Josh Turner
Blake Lively, Blake Shelton, Scotty McCreery
Larry David, Pitbull with Ne-Yo
Josh Duhamel, Jill Scott
Larry the Cable Guy, Dorothy Custer, LMFAO
Rosario Dawson, Marc Anthony, Jackie Evancho
Louis C.K., Richard Engel, Raphael Saadiq
Justin Timberlake, Kevin Hart, the Antlers
Owen Wilson, Tom Papa, Plain White T's
Lisa Kudrow, Billy Gardell, Natasha Bedingfield
Julie Scardina, Billy Ray Cyrus
Kevin James, "The Voice" winner Javier Colon
Kathie Lee Gifford, Hoda Kotb, Ashton Shepherd
Howie Mandel, David Feherty, Joss Stone
Seth Meyers, Marjorie Johnson, Barry Manilow
Craig Ferguson, Rose Byrne
Don Rickles, Bristol Palin, Colbie Caillat
Bryan Cranston, Nancy Grace, Shaggy
Neil Patrick Harris, Buddy Valastro, Imelda May
Jenna Fischer, Ben Bailey, 3 Doors Down
Daniel Craig, Gavin DeGraw
Emma Stone, Adam Carolla, Rickey Minor, Grace Potter, Charles Bradley, Sharon Jones
Dolly Parton
Jessica Alba, Sue Johanson, Gomez
Shaun White, Olivia Wilde, Train
Vanessa Carlton
Matt LeBlanc, Freida Pinto, Stevie Nicks
Gillian Anderson, Aziz Ansari, Kelly Rowland
Ryan Reynolds, Sheryl Crow, Matt Nathanson
Katie Holmes, Novak Djokovic, Mat Kearney
Jeremy Piven, Kelly Osbourne
Roseanne Barr, Jason Momoa, Lykke Li
Dennis Miller, Dennis Rodman, Rye Rye featuring Robyn
Gordon Ramsay, Bryce Dallas Howard, Panic! at the Disco
Jesse Eisenberg, Mike "The Situation" Sorrentino, Cage the Elephant
Joel McHale, Viola Davis, Ximena Sarinana
Sam Worthington, Bailee Madison, The Game
Jane Fonda, Elizabeth Banks, Mana
Shaun White, Olivia Wilde, Train
Ryan Reynolds, Sheryl Crow, Matt Nathanson
Jason Sudeikas, Adam Levine, Ziggy Marley
Kathie Lee Gifford, Hoda Kotb, Captain Sig Hansen, Ashton Shepherd
Kim Kardashian, Lior Suchard, Randy Travis
Emma Stone, Adam Carolla, Rickey Minor
Justin Timberlake, Kevin Hart, The Antlers
Katie Holmes, Novak Djokovic, Mat Kearney
Dolly Parton, Ben Bailey
Louis C.K, Richard Engel, Raphael Saadiq
Julie Scardina and animals, David Koechner, Cake
Jeff Bridges, Nicole "Snooki" Polizzi
Allison Janney, Jay Mohr, OK Go
Heidi Klum, Kevin Smith, Fitz and the Tantrums
Dick Cheney, Kevin Hart, Andy Grammer
Wanda Sykes, Nick Swardson, Roger Daltrey
Kristin Chenoweth, Chris Colfer
Will Arnett, Tinie Tempah
Bill Maher, Octavia Spencer, Alice Cooper
Christina Applegate, Paul "DJ Pauly D" Delvecchio, Glen Campbell
Ellen DeGeneres, Bob Harper, Cobra Starship
Jane Lynch, Demetri Martin, Needtobreathe
Kevin Hart
Jason Statham, Michele Bachmann, Lady Antebellum
Simon Cowell, Natasha Leggero, Selena Gomez
Gerard Butler, Whitney Cummings, Kelly Clarkson
Amy Poehler, Joseph Gordon-Levitt, the Kooks
Jamie Foxx, Michelle Monaghan, Bush
Hugh Jackman, Maya Rudolph, Tony Bennett
Ryan Gosling, Pauley Perrette, Arctic Monkeys
Lauren Graham, Seth MacFarlane
Ed Helms, Deena Nicole Coretese, Lisa Hannigan
Albert Brooks, Chaz Bono, TV on the Radio
Hugh Laurie, the Airborne Toxic Event
Evangeline Lilly, Magic Johnson
Kim Kardashian, Kris Humphries, Kenny Wormald, LeAnn Rimes
Tim Allen, Theresa Caputo, Scotty McCreery
Jack Black, Steve Martin, Owen Wilson, Aubrey Plaza, Blondie
David Arquette, Darrell & Brandon Sheets, Puddle of Mudd
Aaron Eckhart, Julianne Hough, Amos Lee
Julie Bowen, Dave Salmoni, Imelda May
Zooey Deschanel, J.R. Martinez, Fountains of Wayne
Zachary Levi, Gloria Estefan
Terry Bradshaw, Rowan Atkinson, Game
Jonah Hill, Paula Deen, Chris Isaak
President Barack Obama
Amanda Seyfried, John Cho & Kal Penn, Patrick Stump
Chelsea Handler, Chris D'Elia, the Original 7ven
Adam Sandler, Drew Manning, Awolnation
Justin Bieber, Lloyd
Eddie Murphy, Robyn
Taylor Lautner, Martha Stewart, Daughtry
Kristen Stewart, Dave Attell, Joe Jonas
Miss Piggy, Mickey Rourke, Mute Math
Ellen Barkin, Henry Cavill, Cirque du Soleil \"Iris\"
Jason Segel, Kris Jenner, Lyle Lovett
Kelsey Grammer, Andrea Bocelli
Whitney Cummings, Chris Matthews, Il Divo
Kermit the Frog, Ricki Lake, Nicole Scherzinger
Amy Adams, Rocket City Rednecks, Miranda Lambert
Howie Mandel, Nicole \'Snooki\' Polizzi, Patrick Stump
Robin Williams, Vince Gill
Jimmy Fallon, Drew Brees, Gym Class Heroes
Jim Parsons, Meghan McCain, Tom Morello with Ben Harper
Dennis Miller, Javier Colon
Julie Scardina, Dane Cook, Hot Chelle Rae
Chelsea Handler, Dwight Howard, Gloriana
Kirstie Alley, Damon Wayans Jr., She & Him
Kathy Bates, Jay Mohr, Switchfoot
Bill Cosby, Raini Rodriguez, Iron & Wine
Melissa McCarthy, Gov. Rick Perry, T-Pain
Hilary Swank, Mike \"The Situation\" Sorrentino, Dia Frampton
Robert Downey Jr., Abigail Breslin, Alison Krauss & Union Station
Katherine Heigl, J.B. Smoove, Taio Cruz
Lea Michele, Adam Carolla, Neil Diamond
Katie Couric, Chris D\'Elia, Blake Shelton
Bill O\'Reilly, Jackie Evancho
Charlize Theron, Kevin Hart, Foster the People
Dana Carvey, Jason Reitman, Lenny Kravitz
Louis C.K., Common
Al Michaels & Cris Collinsworth, Elle Fanning, Robin Thicke
Rep. Ron Paul, Chris Cornell
Sandra Bullock, Diablo Cody, Pink Martini
Charles Barkley, Berenice Bejo, Amber Riley
Thomas Haden Church, "Turtle Man" Ernie Brown Jr., Johnny Mathis
Jonah Hill, Il Volo
Terry Bradshaw, Bailee Madison, Chris Isaak
Whitney Cummings, Nicole "Snooki" Polizzi, will.i.am
Coming soon...Tracy Morgan, Rick & Corey Harrison, Shaggy
Michelle Williams, Josh Lucas, Chris Cornell
Glenn Close, Trevor Noah, Van Hunt
Janet Jackson, Larry the Cable Guy, Eli Young Band
Queen Latifah, Paul "DJ Pauly D" DelVecchio, Augustana
Liam Neeson, Jack's Mannequin
Gerard Butler, Betty White
Tilda Swinton, Jennifer Hudson, Graffiti6
TBA
Sam Worthington, Sherri Shepherd, Adam Lambert
Jennifer Garner, Ross Matthews, Parachute
Wanda Sykes
Steven Tyler, Ryan Seacrest, Randy Jackson, Sarah Colonna
Madonna, Chris Colfer, Joe Perry
Michelle Obama, Mark Harmon, Imelda May
Daniel Radcliffe, Vanessa Hudgens, Evanescence
Drew Barrymore, Blake Shelton
Debra Messing, Jean Dujardin, Bush
Dwayne Johnson, Cirque du Soleil
Chelsea Handler, Jon Huntsman, 2Cellos
Chris Pine, Lisa Lampanelli, Anthony Hamilton
Denzel Washington, Estelle
Rachel McAdams, Cee-Lo Green
Jennifer Lopez, Jeff Dunham, the Civil Wars
Tyler Perry, Dorothy Custer, the Cranberries
Bill Maher, Alexandra Wentworth, Punch Brothers
Amanda Seyfried, Billy Gardell, Monica, Brandy
Dave Salmoni, the Fray
Taylor Swift, Michael Clarke Duncan, Robert Randolph, Cesar and David of Los Lobos, Chris Layton
Bill O\'Reilly, Rob Riggle, Rumer
Tim Allen, Rocket City Rednecks, Jessie Baylin
Meredith Vieira, Jackson Murphy, Redlight King
Jennifer Aniston, Adam Levine, Chiddy Bang
Megan Fox, Michel Hazanavicius, Mariachi El Bronx
Rob Schneider, Khloe Kardashian Odom, Mona
Sen. John McCain, Elizabeth Olsen, Romeo Santos
Julianne Moore, Dr. Brady Barr, Chickenfoot
Emily Blunt, Geoff Stults, Scars on 45
Jessica Simpson, Adam Carolla, Soja
Jonah Hill, Bethenny Frankel, Shooter Jennings
Channing Tatum, Drew Brees, Meat Loaf
Kiefer Sutherland, Kathryn Hahn, Andy Grammer
Jimmy Fallon, 8-year-old presidential whiz kid H.L. McCullough, Toby Keith
Jamie Lee Curtis, Armie Hammer, Robert Glasper Experiment featuring Ledisi
Rep. Ron Paul, Frank Caliendo, the Wanted
Kim Kardashian, Tennis
Arsenio Hall, Lily Collins
Christina Aguilera, Melanie Fiona featuring J. Cole
Elizabeth Banks, Carson Daly, Jake Owen
Mitt Romney, Megan Hilty, the Pierces
Rainn Wilson, Debbie Gibson, Gavin DeGraw
Piers Morgan, Liam Hemsworth, Mat Kearney
Nicole Richie, Alan Jackson
Betty White, Paul \"DJ Pauly D\" DelVecchio, Eric Huthinson
Maya Rudolph, Jason Biggs
David Gregory, Cee-Lo Green, Seal
Zac Efron, Grace Potter and the Nocturnals
Julie Scardina, Rodrigo y Gabriela
Jane Lynch, Kevin Hart, Esperanza Spalding
Josh Hutcherson, Rachel Maddow, Eric Turner featuring Lupe Fiasco and Tinie Tempah
Albert Brooks, Austin \"Chumlee\" Russell & Corey \"Big Hoss\" Harrison, Neon Trees
Chris Diamantopoulos, Feist
Jason Segel, Anna Faris, Far East Movement
Drew Barrymore, Blake Shelton
Coming soon.Christina Aguilera, Kevin Smith, Melanie Fiona featuring J. Cole..
Jimmy Fallon, H.L. McCullough, Toby Keith
Taylor Swift, Michael Clarke Duncan, Cesar & David of Los Lobos, Robert Randolph, Chris Layton
Channing Tatum, Drew Brees, Meat Loaf
Jesse Tyler Ferguson, Aubrey O\'Day, Train
Jack Black, Daniel Holzman & Michael Chernow, Beirut
Adam Levine, Ziggy Marley
Diane Keaton, Natalie Coughlin, Moby
Mel Gibson, the Wanted
Steve Martin, Rashida Jones, Steve Martin & the Steep Canyon Rangers
Cameron Diaz, William Shatner, Lee Brice
Scarlett Johansson, Blake Shelton, K\'Naan featuring Nelly Furtado
Robert Downey Jr., Katharine McPhee, Toast to Freedom
Kristen Stewart, James Morrison
Michelle Pfeiffer, Bear Grylls, Snow Patrol
Rick Santorum, Taylor Kitsch, B.o.B., O.A.R.
Garry Shandling, Alison Brie, the winner of \"The Voice\"
Howie Mandel, Vinny Guadagnino, Sara Watkins
Jenna Fischer, Jay Mohr
Kourtney, Kim & Khloe Kardashian, Donny Deutsch, Karmin
Wanda Sykes, Andy Cohen, Santana
Joel McHale, Jarod Miller, Bobby Brown
Hugh Laurie, Robert Griffin III
Sherri Shepherd, Julianne Hough, Tenacious D
Kevin Costner, Bailee Madison, Lisa Marie Presley
Josh Brolin, Ali Wentworth, Glenn Frey
Charlize Theron, Jeffrey Dean Morgan, Juanes
Glenn Close, the winner of \"American Idol\", Nelly Furtado
Gen. Colin Powell, Greg Gadson, All American Rejects
Elizabeth Banks, Dan Patrick, Brandi Carlisle
Patrick Duffy, Linda Grey, Larry Hagman, Meghan McCain, Meiko
Terry Bradshaw, Ernie Brown Jr., Neal James, Rachel Bradshaw
Penelope Cruz, Rick Harrison, We Are Augustines
Salma Hayek, Adam Brody, Olly Murs
Steve Carell, Cory Booker, Glen Hansard
Matthew McConaughey, Natasha Leggero, Grouplove
Andy Samberg, Seth MacFarlane, Joe Henry featuring Lisa Hannigan
Katy Perry, Needtobreathe
Chris Pine, Rachael Ray, Everclear
Louis C.K., Lolo Jones, Delta Rae
Matt LeBlanc, Sig Hansen & Keith Colburn, Robin Thicke
Mila Kunis, Jim Norton, Justin Bieber
Tyler Perry, Rhys Ifans, Keane
Andrew Garfield, Of Monsters And Men
Wanda Sykes, Rob Riggle, Kimbra
Zachary Levi, Bubba Watson, B.o.B.
Morgan Freeman, \"Britain\'s Got Talent\" winners Ashleigh & Pudsey, Jana Kramer
Denis Leary, Olivia Munn, Kenny Chesney
Dana Carvey, Nicki Minaj
Charlie Sheen
Kate Beckinsale, Adam Carolla
Newt Gingrich, Nicole \"Snooki\" Polizzi, MGK
Rachel Weisz, Aaron Paul
Ben Stiller, Rose Byrne, Missy Higgins
Vince Vaughn, Travis Pastrana, Aretha Franklin
Colin Farrell, Jenni \"JWoww\" Farley, Jay Sean
Jessica Biel, Kevin Smith, the Lumineers
Julie Scardina, Dwyane Wade, MoZella
Jeremy Renner, Betty White, Joss Stone
Jay interviews special guest, First Lady Michelle Obama & Norah Jones performs.
Jay interviews Kelsey Grammer.
Sylvester Stallone talks about his new movie, “The Expendables 2”
Jay interviews Kristen Bell & Regina Spektor performs.
Jason Statham talks about his new movie “The Expendables 2”
Maya Rudolph, Jeff Foxworthy, Morning Parade
Shia LaBeouf, Jean-Claude Van Damme, fun.
Katie Couric, Dax Shepard, Emeli Sande
Kirsten Dunst, Chris Matthews, Smashing Pumpkins
Howie Mandel, Alejandro Escovedo
Dennis Miller, Joshua Radin
Owl City with Carly Rae Jepsen
Bill Maher, Tristan Prettyman
Savannah Guthrie, Dolph Lundgren
Lauren Graham, Dan Patrick
