Season 0 Season 1 Season 2 Season 3 Season 4 Season 5 Season 6 Season 7 Season 8 Season 9 Season 10 Season 11 Season 12 Season 13 Season 14 Season 15 Season 16
Julianne Moore, Aries Spears, Godsmack David Duchovny, Greg Behrendt, OK Go Kiefer Sutherland, Joely Fisher, Ben Harper Alan Alda, Sophia Bush, Citizen Cope Zach Braff, Artie Lange, John Mayer Ashton Kutcher, Tracy Morgan, John Mayer Dwayne "The Rock" Johnson, Al Franken, air guitar expert Björn Türoque Matthew Perry, Xzibit, The Rapture Gisele Bundchen, Jim Cramer, Madeleine Peyroux Johnny Knoxville, Caroline Rhea, Bonnie "Prince" Billy Bob Newhart, Elle Macpherson, Jimmy Carr Jennifer Love Hewitt, John Krasinski, Ben Kweller Jason Lee, Bridget Moynahan, Chingy Marcia Cross, David Gregory, Sam Moore Christopher Walken, Michael Clarke Duncan, Scissor Sisters Billy Bob Thornton, Mr. T, The Wreckers John Stamos, Amy Poehler, Nigella Lawson Bob Costas, David Cross, Phoenix Dennis Miller, Rachael Ray, Evanescence Martin Scorsese, Harland Williams, The Decemberists Brian Williams, Scott Wolf, Larry Miller Jaime Pressly, Jerome Bettis, Jerry Lee Lewis Alex Trebek, Yunjin Kim, Barenaked Ladies John Lithgow, Lewis Black, Gomez Alec Baldwin, John Cena, Demetri Martin Sarah Michelle Gellar, Bob Saget, Robert Randolph & The Family Band Helen Mirren, Jim Gaffigan, Basement Jaxx Jason Schwartzman, Arielle Kebbel, Jenny Lewis Regis Philbin, Alessandra Ambrosio, Dierks Bentley Tina Fey, Steven Wright, Barbara Stewart Kirsten Dunst, Harry Shearer, Corinne Bailey Rae Nathan Lane, Jason Sudeikis, Ben Folds Diddy, Joe Buck, Frank Black Charles Barkley, Kristin Chenoweth, Cat Power The Skeleton Show Borat, Jack McBrayer, Mastodon John Leguizamo, Arden Myrin, Los Abandoned Darrell Hammond, Jesse Bradford, Prof. Kevin Warwick Russell Crowe, Jorge Garcia, Dean Karnazes Will Ferrell, Tom Everett Scott, Death Cab For Cutie Howie Mandel, James Lipton, Mat Kearney Meredith Vieira, Greg Grunberg, Old Crow Medicine Show Barbara Walters, Dax Shepard, Los Lobos Robin Williams, Christian Slater, Panic! At The Disco Jack Black & Kyle Gass, Joshua Jackson, Tenacious D Elijah Wood, Jon Lovitz, Jud Hale Martin Short, Flavor Flav, Damien Rice Rachel Weisz, Masi Oka, Army of Anyone James Spader, Amy Sedaris, Robyn Hitchcock Will Arnett, Alyson Hannigan, Billy Talent Ethan Hawke, Jim Gaffigan, The Brand New Heavies Hugh Jackman, Tiki Barber, Mike Birbiglia Matthew Broderick, Lisa Edelstein, Jet Jude Law, Kristen Wiig, The Brian Setzer Orchestra Martha Stewart, Brian Posehn, My Morning Jacket Lucy Liu, Tillie the Canine Artist Tom Brokaw, Ed Helms, Sarah McLachlan Jennifer Connelly, Jason Segel, Joan Jett and the Blackhearts Kevin Nealon, Angela Kinsey, Deftones Rob Lowe, Rashida Jones, Drake Bell Julianna Margulies, Aries Spears, Mike Lupica Chazz Palminteri, Seth Meyers, TV On The Radio Cameron Diaz, Dennis Haysbert, Dashboard Confessional Ricky Gervais, Steven R. Schirripa, The Matt Savage Trio Jeremy Irons, Terry Crews, Aimee Mann Howard Stern, Jim Gaffigan Sylvester Stallone, Carla Gugino, Matt Mays & El Torpedo Patricia Heaton, Jason Ritter, Tony Bennett Ben Stiller, Ving Rhames, Joshua Bell Andy Samberg, Stuart Scott, Sean Lennon Ewan McGregor, Manny Puig, Jordana Spiro Carson Daly, Michelle Trachtenberg, Nellie McKay LL Cool J, Abigail Breslin, Gov't Mule Placido Domingo, Patton Oswalt, moe. Jarod Miller, Dulé Hill, Louis C.K. Cedric the Entertainer, Orlando Jones, John Pizzarelli Matt Lauer, America Ferrera, Little Big Town Donald Trump, Meagan Good, Ron Sexsmith David Arquette, Lonny Ross, Chuck "The Iceman" Liddell Hilary Swank, Artie Lange, The Black Keys Kiefer Sutherland, Jill Hennessy, Gym Class Heroes Tracy Morgan, Jim Gaffigan, Sparta Brian Williams, Dominic Purcell, Dana Gould Megan Mullally, Colin Hanks, Annuals Liam Neeson, Ali Larter, Brand New Brad Garrett, Sarah Silverman, Peter Bjorn And John Kristin Davis, Bob Saget, Paolo Nutini Sienna Miller, Goran Visnjic, Paul Weller Serena Williams, Donal Logue, Kevin Brennan Charlize Theron, Bill Hader, Stars of Track and Field Kristin Chenoweth, Mindy Kaling, The Slip Dr. Phil McGraw, Emily Deschanel, Calexico Cuba Gooding Jr., Joy Behar, Jonathan Katz Bob Costas, Ashley Tisdale, Josh Groban Dylan McDermott, Michael Urie, Lamb of God Martin Lawrence, Hayden Panettiere, Hinder Eva Longoria, Fred Willard, Lily Allen Drew Barrymore, Marc Maron, The Apples in Stereo Nicolas Cage, Natalie Morales, John Mulaney Christina Ricci, Alan Cumming, Joshua Radin Sen. Chuck Schumer, Tracee Ellis Ross, The Holmes Brothers Heather Graham, Lewis Black, Explosions in the Sky Jim Carrey, Al Roker, Jonny Lives! Jimmy Fallon, Keith Olbermann, Steven Kaplan Billy Bob Thornton, J. Alexander, G. Love Jim Gaffigan, Liev Schrieber, Solomon Burke Jake Gyllenhaal, Lance Armstrong, Bayside Larry King, Izabel Goulart, 'Biscuit Lady' Carol Fay Anderson Cooper, Rob Corddry, Son Volt Ted Koppel, Tom Cavanagh, Relient K David Hyde Pierce, Kate Mara, Dr. Dog Chris Rock, Christopher Meloni, Mary Weiss with The Reigning Sound Andy Richter, Len Berman, The Shins Julia Louis-Dreyfus, Harland Williams, Neil deGrasse Tyson Jeff Goldblum, Ivanka Trump, Pete Yorn Tom Arnold, Rainn Wilson, Jesse Malin Bernie Mac, Chris Hansen, Daughtry Don Cheadle, Neil Patrick Harris, Shane Mauss Adam Sandler, Sarah Thyre, Lindsey Buckingham Liv Tyler, Gerard Butler, The Fratellis Quentin Tarantino, Jesse L. Martin, Brian Kiley Rosario Dawson, Jason Sudeikis, Martina McBride Ice Cube, B.J. Novak, Clap Your Hands Say Yeah Diddy, David Gregory, Kaiser Chiefs Michael Imperioli, Jim Cramer, Albert Hammond, Jr. Jeff Daniels, Zoë Bell, The Alternate Routes Martin Short, Cheryl Hines, Cold War Kids Tina Fey, Kevin Pollack, Mystery Molly Shannon, Tiki Barber, Of Montreal Ray Liotta, Mary Lynn Rajskub, Joseph Arthur Martha Stewart, Rob Huebel, Ian Edwards Darrell Hammond, Andrew W.K., Blue October Tyra Banks, Masi Oka, Brandi Carlile Garry Shandling, Adam Brody, Ricky Skaggs & Bruce Hornsby Dana Carvey, Jasper Redd, Arctic Monkeys George Lucas, Will Arnett, Chris Isaak Robin Williams, The Glide Ensemble Randy Jackson, Patton Oswalt, Frisbee Golf National Champion David Feldberg, Bob Weir & RatDog Snoop Dogg, Tom Waits Amanda Peet, Morgan Spurlock, Secondhand Serenade Zach Braff, D. J. Qualls, Jimmy Carr Howie Mandel, Criss Angel, Patrick Wolf Lindsay Lohan, Larry the Cable Guy, Stephen Marley featuring Damien Antonio Banderas, Sarah Chalke, The Avett Brothers William Shatner, Eric Dane, mtvU's Best Music on Campus Winner Tom Selleck, John Stamos, Dan Mintz Rebecca Romijn, Donald Faison, Silversun Pickups Amy Poehler, Dave Annable, M. Ward Luke Wilson, Oscar Nuñez, Blonde Redhead Dominic Monaghan, Chris 'Ludacris' Bridges, Rickie Lee Jones Amy Sedaris, Lester Holt, Loudon Wainwright III America Ferrera, Eddie Izzard, Mark 'Dr. Bugs' Moffett Mike Myers, Seth Rogen, The Academy Is... Dane Cook, 'Dancing With the Stars' winner Apolo Anton Ohno, Mando Diao Paul Rudd, Elisha Cuthbert, Kings of Leon Brian Williams, Leslie Mann, Los Straitjackets with Big Sandy Debra Messing, Marc Maron, Nelly Furtado Marg Helgenberger, Steven R. Schirripa, John Mulaney Nicole Richie, Billy Connolly, Crowded House Seth Green, Eli Roth, EL-P Tim Russert, Ginnifer Goodwin, Feist Kevin Dillon, Jim Cramer, Patty Griffin Kyra Sedgwick, John Cena, Andrew Bird Jessica Alba, Bear Grylls, Paul F. Tompkins Tea Leoni, Tyrese Gibson, The White Stripes Steve Carell, Jennifer Esposito, Flight of the Conchords Wanda Sykes, Nick Offerman, illusionist Hans Klok with Pamela Anderson John Krasinski, Louis CK, The Mooney Suzuki Lauren Graham, Steve Zahn, Rooney Jarod Miller, Jason Priestley, Dan Naturman Denis Leary, Mark Consuelos, Against Me! Daniel Radcliffe, Carlos Mencia, Art Brut Emma Watson, Patton Oswalt, Mark Ronson Jason Sudeikis, Janeane Garofalo, They Might Be Giants Christopher Walken, Tim Meadows, Nick Lowe Jessica Biel, Artie Lange, The Cribs Adam Sandler, Vera Farmiga, Pegi Young Queen Latifah, Matt Groening, Fountains of Wayne Kevin James, Jordana Spiro, Greg Giraldo John Leguizamo, James Blake, Marc Broussard Andy Samberg, Harry Shearer, Tegan & Sara Seth Rogen, Ann Curry, wine expert Gary Vaynerchuk Anne Hathaway, Harland Williams, Mavis Staples Jackie Chan, Simon Pegg, Just Jack Chris Tucker, Tori Spelling, Shiny Toy Guns Glenn Close, Michael Cera, Modest Mouse Claire Danes, Jonah Hill, Teddy Thompson Cuba Gooding, Jr., Jackie Hoffman, Bruce Perry Amanda Bynes, Judd Apatow, Straylight Run Bob Saget, Maggie Q, Shane Mauss Jeff Goldblum, Devon Aoki, Okkervil River Kelly Preston, Ryan Reynolds, Ozomatli Kevin Bacon, Will Forte, Eisley Scarlett Johansson, Kevin Nealon, Locksley