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Season
Season 1 Episode
- Season 1 Bill Maher
- Season 1 Jerry Seinfeld, Jay-Z with Rihanna & Kanye West
- Season 1 Michael Moore, Tom Cruise, Cameron Diaz
- Season 1 Robin Williams, Miley Cyrus
- Season 1 Halle Berry, Bruce Hornsby with Eric Clapton
- Season 1 Drew Barrymore, Mel Gibson
- Season 1 Jennifer Garner, Barney Frank, Headlines
- Season 1 Pee-Wee Herman, Amy Poehler, 99 Cent Store
- Season 1 Vince Vaughn, Michaels vs. Costas
- Season 1 Rush Limbaugh, Smokey Robinson with Joss Stone
- Season 1 Hugh Laurie, LeBron James
- Season 1 Bill Maher, Brad Paisley & Sheryl Crow
- Season 1 Julia Louis-Dreyfus, Billy Crystal
- Season 1 Adam Carolla, Steve Carell, Vince Gill & Emmylou Harris
- Season 1 Chris Rock
- Season 1 Jenna Fischer, Dan Ahdoot, Photo Booth
- Season 1 Jamie Foxx, Joe Torre
- Season 1 Abigail Breslin, Cindy McCain
- Season 1 Wanda Sykes, Kathleen Sebelius
- Season 1 Gerard Butler, Ben Harper & Jack Black
- Season 1 Terry Bradshaw
- Season 1 Dana Carvey
- Season 1 John C. Reilly, Ben Roethlisberger
- Season 1 Mikey Day, Bill Cosby
- Season 1 Matt Lauer, Jeff Dunham
- Season 1 Ross Mathews, Sen. John McCain
- Season 1 Rod Stewart
- Season 1 Martha Stewart, Ludacris
- Season 1 Rainn Wilson
- Season 1 Hilary Swank, Jerry Jones
- Season 1 Colin Firth
- Season 1 Dr. Phil McGraw
- Season 1 Ewan McGregor, Tina Fey
- Season 1 Chelsea Handler, Brian Williams
- Season 1 Paula Abdul
- Season 1 John Cusack, Frank Caliendo
- Season 1 Mariah Carey, a performance from Cirque du Soleil's
- Season 1 Katie Featherston & Micah Sloat
- Season 1 Jenna Bush Hager, Laura Bush
- Season 1 Wanda Sykes, Rachael Ray, Dan Finnerty & the Dan Band
- Season 1 Elizabeth Banks
- Season 1 Kathy Griffin
- Season 1 Howie Mandel
- Season 1 Sandra Bullock
- Season 1 Penelope Cruz, Dolly Parton
- Season 1 Terrence Howard, Terry Bradshaw
- Season 1 Taylor Lautner, Heather Locklear
- Season 1 The Biggest Loser Rebecca Meyer, Kevin Nealon, Tyra Banks
- Season 1 Larry the Cable Guy, Mikey Day
- Season 1 Dakota Fanning, Kate Flannery, Jeff Dunham, Mikey Day
- Season 1 Kellan Lutz, Ed Begley Jr.
- Season 1 Gov. Arnold Schwarzenegger, Lady Gaga
- Season 1 Charles Barkley, The Biggest Loser contestant Allen Smith
- Season 1 Paula Patton
- Season 1 Megan Fox
- Season 1 Bill Maher
- Season 1 John Travolta, Kim Kardashian
- Season 1 Morgan Freeman, Maxwell, Nick Thune
- Season 1 Kelsey Grammer, Taylor Swift
- Season 1 Susan Sarandon, Andrea Bocelli with the Muppets
- Season 1 Gabourey Sidibe, Winner of The Biggest Loser Danny Cahill
- Season 1 Quentin Tarantino, Drew Brees
- Season 1 Matt Damon, Barry Manilow
- Season 1 Gordon Ramsay
- Season 1 Anna Kendrick, Tim McGraw
- Season 1 Christina Applegate, Nick Lachey
- Season 1 Sigourney Weaver, John Mayer
- Season 1 Sam Worthington, Mary J. Blige
- Season 1 Glenn Beck, Kate Gosselin
- Season 1 Jeff Bridges, Adam Lambert
- Season 1 Dane Cook
- Season 1 Julie Scardina, African Children's Choir
- Season 1 Tim Allen
- Season 1 Kim Kardashian, Jillian Michaels, Guy Fieri
- Season 1 Hugh Jackman, Katie Couric
- Season 1 Denzel Washington
- Season 1 Brian Williams
- Season 1 Bill Cosby
- Season 1 Sandra Bullock
- Season 1 Heidi Klum
- Season 1 Dwayne Johnson
- Season 1 Julianne Moore
- Season 1 Emily Blunt
- Season 1 Chelsea Handler
- Season 1 James Cameron
- Season 1 Billy Crystal
- Season 1 Mark Harmon
- Season 1 Mel Gibson
- Season 1 Bill Paxton
- Season 1 Howie Mandel
- Season 1 Jessica Alba
- Season 1 Jessica Biel
- Season 1 Wanda Sykes
- Season 1 Bill Maher, Gretchen Bleiler
- Season 1 Emma Roberts, Charles Barkley
- Season 1 Series Finale: Ashton Kutcher, Bob Costas, Gabourey Sidibe
The Jay Leno Show - Season 1 Episode 30 Colin Firth
3.63 60 minutes 
