Christina Ricci, Mike 'The Situation' Sorrentino, Paul 'DJ Pauly D' DelVecchio, Vinny Guadagnino, Ronnie Ortiz-Magro, Mariachi El Bronx (S10E1)
1/3/2012
Kelsey Grammer, Octavia Spencer, Lloyd (S10E2)
1/4/2012
Tracy Morgan, Chris Paul, tUnE-yArDs (S10E3)
1/5/2012
Don Cheadle, David Cross, Boyz II Men (S10E4)
1/6/2012
Channing Tatum, Ben Flajnik, Uh Huh Her (S10E5)
1/9/2012
Randy Jackson, Dermot Mulroney, Will Hoge (S10E6)
1/10/2012
Woody Harrelson, Yvonne Strahovski, Rodney Atkins (S10E7)
1/11/2012
Meryl Streep, Stephen Merchant, Kina Grannis (S10E8)
1/12/2012
Katherine Heigl, Ne-Yo, Grouplove (S10E9)
1/17/2012
Will Arnett, Madeleine Stowe, Dana Gould (S10E10)
1/18/2012
Tom Arnold, Keke Palmer, Filter (S10E11)
1/19/2012
Terrence Howard, Thomas Horn, Safetysuit (S10E12)
1/20/2012
Kiefer Sutherland, Bear Grylls, Young the Giant (S10E13)
1/23/2012
Elizabeth Banks, Ben McKenzie, Mindless Behavior (S10E14)
1/24/2012
Cuba Gooding Jr., Sara Hyland, Big Freedia (S10E15)
1/25/2012
Andre Agassi, J.B. Smoove, Seal (S10E16)
1/26/2012
Kate Walsh, Marc Maron, Fishbone (S10E17)
1/30/2012
Martin Scorsese, Kenneth Branagh, Angels and Airwaves (S10E18)
1/31/2012
John Krasinski, Eloise Mumford, Gotye (S10E19)
2/1/2012
Gary Oldman, Tim Heidecker & Eric Wareheim, Korn (S10E20)
2/2/2012
Michelle Williams, Angela 'Big Ang' Raiola, Pitbull (S10E21)
2/6/2012
Antonio Banderas, Damon Wayans Jr., 50 Cent (S10E22)
2/7/2012
Nathan Fillion, Josh Hutcherson, Far East Movement (S10E23)
2/8/2012
Courteney Cox, Mario Manningham & Ahmad Bradshaw, Tony Bennett (S10E24)
2/9/2012
Jeff Goldblum, David Alan Grier, Lana Del Rey (S10E25)
2/13/2012
John Goodman, Kevin Nealon, Robin Thicke (S10E26)
2/14/2012
Sean 'Diddy' Combs, 'Science Bob' Pflugfelder, Miley Cyrus (S10E27)
2/15/2012
Chris Pine, Khloe Kardashian Odom, Puscifer (S10E28)
2/16/2012
Eric Stonestreet, Kate Upton, Jake Owen (S10E29)
2/21/2012
Jessica Alba, Rep. Barney Frank, Nathan Myhrvold, Tower of Power (S10E30)
2/22/2012
Joel McHale, Justin Theroux, Die Antwoord (S10E31)
2/23/2012
After the Oscars Special (S10E32)
2/26/2012
Steven Tyler, Harvey Weinstein, Melanie Fiona (S10E33)
2/27/2012
Maria Menounos; Mat Kearney (S10E34)
2/28/2012
Ed Helms, Leslie Bibb, Wallpaper (S10E35)
2/29/2012
Joan Rivers, Nicki Minaj (S10E36)
3/1/2012
Dr. Phil McGraw; “The Bachelor” runner-up Lindzi Cox; Keane (S10E37)
3/12/2012
Will Ferrell; actress Ellie Kemper; Allen Stone (S10E38)
3/13/2012
Jonah Hill; Busy Philipps; The Crystal Method feat. Martha Reeves (S10E39)
3/14/2012
Channing Tatum; actor Genesis Rodriguez (S10E40)
3/15/2012
Jessica Simpson; Gael García Bernal (S10E41)
3/19/2012
Kristen Bell; actor Ice Cube; KISS performs (S10E42)
3/20/2012
Don Rickles; Amanda de Cadenet; Dr. Teeth and the Electric Mayhem (S10E43)
3/21/2012
Kristin Chenoweth; racecar driver Jimmie Johnson; Neon Trees (S10E44)
3/22/2012
Zooey Deschanel; actor Steven Seagal; Shinedown (S10E45)
3/26/2012
Ashton Kutcher and Justin Bieber; All-American Rejects (S10E46)
3/27/2012
Adam Carolla; professional basketball player Kevin Durant; White Rabbits (S10E47)
3/28/2012
Carson Daly; actress Kristen Schaal (S10E48)
3/29/2012
Seann William Scott; actress Christa Miller; Eli Young Band (S10E49)
4/2/2012
Edie Falco; Amy Schumer (S10E50)
4/3/2012
Jason Biggs; Lionel Richie and Billy Currington (S10E51)
4/4/2012
Anthony Davis; actress Lena Headey; NeedToBreathe (S10E52)
4/5/2012
LL Cool J; actor James Van Der Beek; Josh Baze (S10E53)
4/9/2012
David Spade; Slash feat. Myles Kennedy (S10E54)
4/10/2012
Ashley Judd; director Bobcat Goldthwait; The Civil Wars (S10E55)
4/11/2012
Danny McBride; actress Dianna Agron; The Shins (S10E56)
4/12/2012
Zac Efron; actress Krysten Ritter; Noel Gallagher (S10E57)
4/16/2012
Mark Harmon; Dancing With the Stars castoff; Ashanti performs (S10E58)
4/17/2012
Jennifer Love Hewitt; Chef Georgia Pellegrini; Jason Mraz (S10E59)
4/18/2012
Gabourey Sidibe; Morgan Spurlock; Kasabian (S10E60)
4/19/2012
Julia Louis-Dreyfus; Andy Hoang & Erik Salgado; The Hives (S10E61)
4/23/2012
John Cusack; Vintage Trouble (S10E62)
4/24/2012
Sharon Osbourne; Max Greenfield; LP (S10E63)
4/25/2012
Emily Blunt; Dave Salmoni; Adam Lambert (S10E64)
4/26/2012
Vanessa Williams; Jonny Lee Miller; Andrew Bird (S10E65)
4/30/2012
David Arquette; Civil Twilight (S10E66)
5/1/2012
William H. Macy; Eva Green; Brad (S10E67)
5/2/2012
Scarlett Johansson; Roger Daltrey (S10E68)
5/3/2012
Kristen Stewart; Chloë Grace Moretz; B.o.B. (S10E69)
5/7/2012
Johnny Depp; Casey Wilson; Silversun Pickups (S10E70)
5/8/2012
Steve Harvey; Dev Patel; Glenn Frey (S10E71)
5/9/2012
Dr. Phil McGraw; Carrie Underwood (S10E72)
5/10/2012
Drew Carey; Rita Wilson (S10E73)
5/16/2012
Matthew Morrison; Beth Stern; Delta Spirit (S10E74)
5/17/2012
Kristin Bell; Dax Shepard; Jason Mantzoukas; The Cult (S10E75)
5/18/2012
Kathy Griffin; Emily Maynard; Gavin DeGraw (S10E76)
5/21/2012
Patricia Heaton; Nikolaj Coster-Waldau; Lisa Marie Presley (S10E77)
5/22/2012
Josh Brolin; Bethenny Frankel; Kimbra (S10E78)
5/23/2012
Charlize Theron; Manny Pacquiao; Graffiti6 (S10E79)
5/24/2012
Christina Ricci; Chef Adam Perry; fun. (S10E80)
6/4/2012
Andy Samberg; Edward Sharpe and the Magnetic Zeros (S10E81)
6/5/2012
Kim Kardashian, Kourtney Kardashian and Khloe Kardashian Odom; Adam Carolla; K'Naan (S10E82)
6/6/2012
Edward Norton; Leighton Meester; Dead Sara (S10E83)
6/7/2012
Martin Short; Cee Lo Green; Goodie Mob (S10E84)
6/12/2012
Jada Pinkett Smith; Matt Kemp; The Temper Trap (S10E85)
6/14/2012
Sally Field; Kevin Love; Waka Flocka Flame (S10E86)
6/19/2012
Anderson Cooper; Scott Caan; Metric (S10E87)
6/21/2012
Katy Perry; Alex Pettyfer; The Offspring (S10E88)
6/25/2012
Louis C.K.; Zoe Kazan (S10E89)
6/26/2012
Matt LeBlanc; Selma Blair; Linkin Park (S10E90)
6/27/2012
Howie Mandel; Chris Bosh; Linkin Park (S10E91)
6/28/2012
Paul Reubens; Dreama Walker; Marina and the Diamonds (S10E92)
7/9/2012
Gary Oldman; Rob Riggle; The Dirty Heads (S10E93)
7/10/2012
Wanda Sykes; Joel Kinnaman; Serj Tankian (S10E94)
7/11/2012
Billy Crudup; Fred Willard; Grace Potter and the Nocturnals (S10E95)
7/12/2012
Bryan Cranston; Larry King; Zac Brown Band (S10E96)
7/16/2012
Russell Brand; Olivia Munn; Matisyahu (S10E97)
7/17/2012
Kate Beckinsale; Chris Harrison; Rubblebucket (S10E98)
7/18/2012
Charlie Sheen; Nicole 'Snooki' Polizzi; Huey Lewis & Joe Cocker (S10E99)
7/19/2012
Ben Stiller; Emily Maynard; The Head and the Heart (S10E100)
7/23/2012
Jeremy Renner; Aaron Paul; Nas (S10E101)
7/24/2012
Colin Farrell; Rosemarie DeWitt; Trey Songz (S10E102)
7/25/2012
Jessica Biel; Rick Ross (S10E103)
7/26/2012
David Duchovny; Jeff Ross; Alabama Shakes (S10E104)
8/13/2012
Joseph Gordon-Levitt; Rebel Wilson; Good Old War (S10E105)
8/14/2012
Thomas Haden Church; Rick Bayless; JJAMZ (S10E106)
8/15/2012
Jennifer Garner; Paul Scheer; The Fixx (S10E107)
8/16/2012
Tom Arnold; Ashley Greene; The Wood Brothers (S10E108)
8/20/2012
Gordon Ramsay; Jordin Sparks; Andy Grammer (S10E109)
8/21/2012
Robert Pattinson; Rick & Corey Harrison; Poliça (S10E110)
8/22/2012
Kyra Sedgwick; Nick Prueher & Joe Pickett; Josh Doyle (S10E111)
8/23/2012
Jamie Foxx; Cat Deeley; Imagine Dragons (S10E112)
9/4/2012
Bob Newhart; Kevin Hart; Miss Willie Brown (S10E113)
9/5/2012
Matt Stone & Trey Parker; Adam Scott; Everclear (S10E114)
9/6/2012
Lea Michele; Simon Bird; The Avett Brothers (S10E115)
9/10/2012
Dr. Phil McGraw; Dakota Johnson; Rita Ora (S10E116)
9/11/2012
Britney Spears & Simon Cowell; Slightly Stoopid (S10E117)
9/12/2012
Terry Bradshaw; Dave Matthews (S10E118)
9/13/2012
Matthew Perry; Josh Hamilton; Kreayshawn (S10E119)
9/17/2012
Richard Gere; Josh Radnor (S10E120)
9/18/2012
Julie Bowen; Nate Parker; The Afghan Whigs (S10E121)
9/19/2012
Julianna Margulies; Jessie Tyler Ferguson; The Killers (S10E122)
9/24/2012
Melanie Griffith; Kerry Washington; Alanis Morissette (S10E123)
9/25/2012
Keanu Reeves; Ginnifer Goodwin; Green Day (S10E124)
9/26/2012
Selena Gomez; Lenny Venito; Tony Bennett (S10E125)
9/27/2012
Zooey Deschanel; Maggie Grace; Electric Approach (S10E126)
10/1/2012
Ty Burrell; Chris Paul; Psy (S10E127)
10/2/2012
Amy Poehler; Alan Arkin; Garbage (S10E128)
10/3/2012
Zac Efron; Jack Black & Kyle Gass; Tenacious D (S10E129)
10/4/2012
Ben Affleck; Demi Lovato; Ben Howard (S10E130)
10/8/2012
Megan Mullally; Father John Misty (S10E131)
10/9/2012
Will Arnett; Chris Elliott; Dwight Yoakam (S10E132)
10/10/2012
Kevin James; Ezra Miller (S10E133)
10/11/2012
Aziz Ansari; Alana “Honey Boo Boo” Thompson & June “Mama” Shannon; Josh Turner (S10E134)
10/15/2012
Don Rickles; Dancing with the Stars Castoff; Miguel (S10E135)
10/16/2012
Joel McHale; Joe Walsh (S10E136)
10/17/2012
Matthew Fox; Emily VanCamp; Paul Weller (S10E137)
10/18/2012
Russell Peters; Prince (S10E138)
10/23/2012
Axl Rose; Ana Gasteyer; The Whigs (S10E139)
10/24/2012
Michelle Obama; Halle Berry; Ciara (S10E140)
10/25/2012
Kelly Ripa; Alicia Keys (S10E141)
10/29/2012
Howard Stern; Tracy Morgan; Sharon Jones and the Dap-Kings (S10E142)
10/30/2012
David Letterman; Vampire Weekend (S10E143)
10/31/2012
Jon Stewart & Stephen Colbert; The Avett Brothers with the Brooklyn Philharmonic (S10E144)
11/1/2012
Robert Pattinson; Chris Hardwick; Ben Folds Five (S10E145)
11/5/2012
John Goodman; Hayden Panettiere; Machine Gun Kelly (S10E146)
11/7/2012
Kirstie Alley; Dave Salmoni; Tyler Bryant & The Shakedown (S10E147)
11/8/2012
Daniel Craig; Stephenie Meyer; Boys Like Girls (S10E148)
11/9/2012
Jessica Lange; Adam Pally; Game feat. Tyga & Wiz Khalifa (S10E149)
11/12/2012
Christina Applegate; Youngblood Hawk (S10E150)
11/13/2012
Martin Short; Suraj Sharma; Ne-Yo (S10E151)
11/14/2012
Mel Brooks; Jake Tapper; Jason Aldean (S10E152)
11/15/2012
Eric Stonestreet; L.A. Reid; Aimee Mann & James Mercer (S10E153)
11/19/2012
Two Dancing with the Stars Castoffs; Andy Allo (S10E154)
11/20/2012
Tim Allen; Manny Pacquiao; Flo Rida (S10E155)
11/21/2012
Ryan Seacrest; Erin Andrews; Soundgarden (S10E156)
11/26/2012
Reba McEntire; Mike Tyson; Youngblood Future (S10E157)
11/27/2012
Eric Bana; Damian Lewis; Wiz Khalifa (S10E158)
11/28/2012
Ted Danson; Emilia Clarke; Larry g(EE) (S10E159)
12/10/2012
Leslie Mann; Ted; Sarah Jaffe (S10E160)
12/11/2012
John Krasinski; Mike Birbiglia; Atlas Genius (S10E161)
12/12/2012
Zachary Knighton; Dan Deacon (S10E162)
12/13/2012
Hugh Jackman; Jenna Fischer; 2 Chainz (S10E163)
12/17/2012
Samuel L Jackson; Jersey Shore cast; Ed Sheeran (S10E164)
12/18/2012
Eric Stonestreet; L.A. Reid; Aimee Mann and James Mercer (S10E165)
12/19/2012
Jessica Lange; Adam Pally; Game featuring Tyga (S10E166)
12/20/2012
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