S7 E1: Kathy Griffin, Sally Hawkins, Mike Birbiglia

S7 E2: Ron Howard, Jeffrey Dean Morgan, Gabe Dixon Band

S7 E3: Anne Hathaway, Jensen Ackles, Lenka

S7 E4: Michael Imperioli, Jason Mesnick, Zac Brown Band

S7 E5: Kiefer Sutherland, Malcolm Gladwell, David Cook

S7 E6: Mickey Rourke, Rowdy Roddy Piper, Michael Strahan, Morgan Murphy

S7 E7: Dustin Hoffman, jet pack pilot Eric Scott, Crooked X

S7 E8: Kevin James, Evan Rachel Wood, Delta Spirit

S7 E9: Sarah Silverman, Soulja Boy Tellem

S7 E10: Randy Jackson, Diablo Cody, Thriving Ivory

S7 E11: Brendan Fraser, Jonathan Goodwin, Blake Shelton

S7 E12: Tim Roth, Joan Rivers

S7 E13: Miranda Cosgrove, Eric McCormack, Boz Scaggs, Dov Davidoff

S7 E14: Adam Carolla, Brody Jenner, Disturbed

S7 E15: Andy Garcia, macaroni and cheese box collector Ian Golder, Kraak and Smaak

S7 E16: Kristen Bell, Carlos Bernard, Benji Hughes

S7 E17: John Cleese, Chris Ayres, the Bird and the Bee

S7 E18: Justin Long, Camilla Belle, Nick Kroll

S7 E19: Vanessa Minnillo, Morrissey

S7 E20: Teri Hatcher, Larry Wilmore, Jazmine Sullivan

S7 E21: Amy Brenneman, Steve-O, the Little Ones

S7 E22: Andy Dick, Grant Show, the Red Jumpsuit Apparatus

S7 E23: Demetri Martin, Marisa Tomei, Mishka, a special appearance by Matthew McConaughey

S7 E24: Johnny Knoxville, Trisha Helfer, Mark Seliger

S7 E25: Tyler Perry, Blues Traveler

S7 E26: Naomi Watts, Whitney Port, K'Naan

S7 E27: Rosie Perez, Danny McBride, Anya Marina

S7 E28: Dev Patel, Robin Roberts, Kinky

S7 E29: The Jonas Brothers, Jimmie Johnson, Darius Rucker

S7 E30: Don Rickles, Ben Sollee

S7 E31: Rob Lowe, Khloe Kardashian, Living Things

S7 E32: Calista Flockhart, John Michael Higgins, Nick DiPaolo

S7 E33: Evangeline Lilly, Jason Mesnick, New Kids on the Block

S7 E34: Charles Gibson, Lil' Wayne, Robyn

S7 E35: Bonnie Hunt, Nathan Fillion, Oren Lavie

S7 E36: Kate Walsh, Carla Gugino, Raphael Saadiq

S7 E37: Heidi Klum, Bryan Cranston, Chris Cornell

S7 E38: Jaime Pressly, animal trainer Kirstin McMillan, the Pretenders

S7 E39: David Hasselhoff, Eliza Dushku, Pendulum

S7 E40: Kristin Stewart, Dwayne Johnson, the Dream

S7 E41: "Dancing with the Stars" castoff Belinda Carlisle, Chandra Wilson, Streeter Seidell and Amir Blumenfeld, Young Dubliners

S7 E42: Andy Samberg, Ashley Scott, MSTRKRFT

S7 E43: John Cena, Christopher Mintz-Plasse, the Duke Spirit

S7 E44: Portia de Rossi, Melissa Rycroft, Motley Crue

S7 E45: "Dancing with the Stars" castoff Denise Richards, Zach Braff, Cheryl Hines, Charlie Wilson sits in with the band

S7 E46: John Stamos, Dr. Drew Pinsky, Blue October

S7 E47: Ozzy, Sharon, Jack and Kelly Osbourne, Bobby Cannavale, Todd Glass

S7 E48: Paul Giamatti, Jim Gaffigan, Keri Hilson featuring Lil Wayne

S7 E49: "Dancing with the Stars" castoffs Steve Wozniak and Holly Madison, Will Arnett, Michelle Rodriguez

S7 E50: Amy Poehler, Jordana Brewster, Les Claypool

S7 E51: Vin Diesel, Anna Faris, Eli Young Band

S7 E52: Ben Affleck, Lily Allen

S7 E53: Jorge Garcia, David Alan Grier, "Dancing with the Stars" castoff Steve-O, Mims

S7 E54: Christina Applegate, Mike Tyson, Dana Gould

S7 E55: Zac Efron, Patti Stanger, Franz Ferdinand

S7 E56: Six-year-old genius Pranav Veera, Pete Yorn

S7 E57: Billy Bob Thornton, "Dancing with the Stars" castoff Lawrence Taylor

S7 E58: Justin Timberlake, Eliza Coupe, the Whip

S7 E59: Channing Tatum, Elisha Cuthbert, Depeche Mode

S7 E60: Jamie Foxx, Elizabeth Mitchell

S7 E61: Michael J. Fox, "Dancing With the Stars" castoff Chuck Wicks, Asher Roth

S7 E62: Dominic Monaghan, J.J. Abrams, Bang Camaro

S7 E63: Brooke Shields, Balthazar Getty, Kumail Nanjiani

S7 E64: Matthew McConaughey, Kara DioGuardi, Jason Aldean

S7 E65: Zachary Quinto, "Dancing With the Stars" castoff Lil' Kim, 11-year-old Scrabble champions Andy Hoang and Erik Salgado

S7 E66: David Spade, Zoe Saldana, Black Eyed Peas

S7 E67: Hugh Jackman, John Cho, Flo Rida

S7 E68: Chris Pine, Aziz Ansari, Scott Weiland

S7 E69: Paula Abdul, "Dancing With the Stars" castoff Ty Murray, Todd Glass

S7 E70: Matthew Fox, Benjamin McKenzie, Ciara

S7 E71: Adrien Brody, Steve "Lips" Kudlow and Robb Reiner, the Airborne Toxic Event

S7 E72: Eminem, Mike Tyson

S7 E73: Ben Stiller, Shawn Johnson and Mark Ballas, No Doubt

S7 E74: Tim Daly, Common, Busta Rhymes

S7 E75: Hank Azaria, Anton Yelchin, Eminem

S7 E76: Danny McBride, Nia Vardalos, Taking Back Sunday

S7 E77: Heather Graham, Lance Krall, Katie Melua

S7 E78: Thomas Haden Church, Ed Helms, 311

S7 E79: Paris Hilton, Ken Jeong, Blink 182

S7 E80: Artie Lange, Adam Perry Lang, No Doubt

S7 E81: Ty Pennington, David Sedaris, the Jonas Brothers

S7 E82: Roseanne Barr, Ryan Kwanten

S7 E83: Kathy Griffin, Ramon Rodriguez, Ben Harper

S7 E84: Kobe Bryant, Derek Fisher

S7 E85: David Arquette, Jill Wagner, Linkin Park

S7 E86: Josh Duhamel, Tracy Hutson, Bat For Lashes

S7 E87: Shia LaBeouf, June Diane Raphael, Eric Hutchinson

S7 E88: Megan Fox, David Cross, Phoenix

S7 E89: Samuel L. Jackson, Jamie-Lynn Sigler, Sean Patrick McGraw

S7 E90: Larry King, Marissa Miller, Chester French

S7 E91: Josh Lucas, Terrell Owens, Pitbull

S7 E92: Teri Hatcher, Danica Patrick, Daughtry

S7 E93: Seth Green, "Bachelorette" Jillian Harris, Zac Sunderland

S7 E94: Zooey Deschanel, Rev. Al Sharpton, Jewel

S7 E95: Katherine Heigl, David and Shaun Cassidy, La Roux

S7 E96: Tom Arnold, "Trailer Park Boys" Rob Wells, John Paul Tremblay and Mike Smith

S7 E97: Leslie Mann, Eric Winter, Parachute

S7 E98: Jonah Hill, Mary McCormack, Ryan Sheckler

S7 E99: Seth Rogen, Melissa Sagemiller, Jack's Mannequin

S7 E100: Anne Heche, Aubrey Plaza, Diane Birch

S7 E101: Ashton Kutcher, Nigel Lythgoe, the Script

S7 E102: Vanessa Hudgens, Eli Roth, Miike Snow

S7 E103: Sienna Miller, Dave Salmoni, Doug Benson

S7 E104: Quentin Tarantino, Rachel Nichols, pizza throwers Chris Green, Sam Niemeier, and Ryan Larose

S7 E105: Gordon Ramsay, Rob Zombie, Friendly Fires

S7 E106: Robin Williams, Bobcat Goldthwait, Matt & Kim

S7 E107: Shaquille O'Neal, Selena Gomez, Darius Rucker

S7 E108: Dylan McDermott, B.J. Novak, the Dead Weather

S7 E109: Kyra Sedgwick, Patton Oswalt, DataRock

S7 E110: Emile Hirsch, Amber Valletta, St. Vincent

S7 E111: Kathie Lee Gifford, Milo Ventimiglia, R. Kelly

S7 E112: Gerard Butler, Nate Berkus, Maxwell

S7 E113: Jennifer Connelly, Jeff Ross, Boys Like Girls

S7 E114: Kathy Griffin, Ryan Kwanten, Brendan Benson

S7 E115: Nick Cannon, Former Gov. Rod Blagojevich, White Lies

S7 E116: Julie Bowen, Rumer Willis, the Used

S7 E117: Eva Longoria Parker, Kelly Clarkson, a special appearance by Matt Damon and Joel McHale

S7 E118: David Alan Grier, 10-year-old vacuum cleaner expert Gregory Evans, Pink

S7 E119: Jenna Elfman, Danny Pudi, Lives of Famous Men, a special appearance by Rachael Ray

S7 E120: Christian Slater, Ed O'Neill, Sofia Vergara, Shakira

S7 E121: David Duchovny, Carmelo Anthony, Kid Cudi

S7 E122: Courteney Cox, Jessica Capshaw, "Dancing with The Stars" castoff Ashley Hamilton

S7 E123: Rob Lowe, Lisa Lampanelli, pizza throwers Chris Green, Sam Niemeier and Ryan Larose, a special appearance by Tommy Lasorda

S7 E124: LeBron James & his high school basketball teammates, Esther Dean, Chris Bianco

S7 E125: Ricky Gervais, "Dancing with the Stars" castoff Kathy Ireland, Alice in Chains

S7 E126: Rebecca Romijn, Joseph Fiennes, Alice in Chains

S7 E127: Hayden Panettiere, Matthew Rhys, Joss Stone

S7 E128: Woody Harrelson, Whitney Port, Shinedown

S7 E129: Patricia Heaton, Debi Mazar, Tom DeLay, Gossip

S7 E130: Joel McHale, Richard Belzer, KISS

S7 E131: Kelsey Grammer, Stana Katic, Motorhead

S7 E132: Michael Moore, Malin Ackerman, the Backstreet Boys

S7 E133: Jack Black, “Dancing with the Stars” castoff Chuck Liddell, Cobra Starship

S7 E134: Jamie Foxx, Toby Keith

S7 E135: Taye Diggs, Kristin Cavallari, Harper Simon

S7 E136: Serena Williams, Dr. Drew Pinsky, Eric Church

S7 E137: Edward Norton, Paul Shaffer, the latest "Dancing with the Stars" castoff, the Sounds

S7 E138: Salma Hayek, Rico Rodriguez, Dead by Sunrise

S7 E139: John C. Reilly, Nene Leakes, Kim Zolciak, an archery demonstration by Randy Oitker, the Temper Trap

S7 E140: Terry Bradshaw, Catherine Keener, Echo & the Bunnymen

S7 E141: Dr. Mehmet Oz, “Dancing with the Stars” castoffs Melissa Joan Hart & Louie Vito, Morningwood

S7 E142: James Marsden, Atticus Shaffer, Flyleaf

S7 E143: Jason Schwartzman, Rod Stewart

S7 E144: Paris Hilton, Slipknot

S7 E145: Pamela Anderson, “Dancing with the Stars” castoffs Mark Dacascos & Michael Irvin, Manny “Pac-Man” Pacquiao, White Rabbits

S7 E146: Joshua Jackson, Big Bird, Ghostface Killah featuring Raheem DeVaughn

S7 E147: Jesse Williams, Florence + the Machine

S7 E148: Ted Danson, Khloe Kardashian, Lamar Odom, Chickenfoot

S7 E149: Chris O'Donnell, Bill Simmons, “Dancing with the Stars” castoff Aaron Carter, Amerie

S7 E150: Dominic Monaghan, Holly Hibner & Mary Kelly, Los Lonely Boys

S7 E151: Danny DeVito, Streeter Seidell & Amir Blumenfeld, Switchfoot

S7 E152: Sean “Diddy” Combs, Super Dave Osborne, Huey Lewis & the News

S7 E153: John Stamos, Emily VanCamp, the latest "Dancing with the Stars" castoff, OneRepublic

S7 E154: 50 Cent, Marv Albert

S7 E155: Carrie Underwood, Heidi Montag & Spencer Pratt

S7 E156: Robert Pattinson, Kristen Stewart, Taylor Lautner, Death Cab for Cutie

S7 E157: Heidi Klum, Ron Artest, Weezer

S7 E158: Charlize Theron, Regis Philbin, "Dancing with the Stars" winner Donny Osmond, Wolfmother

S7 E159: Charles Barkley, Peter Facinelli, Leona Lewis

S7 E160: Magic Johnson, Kellan Lutz, Trey Songz

S7 E161: Matt Dillon, Nikki Reed, Birdman featuring Jay Sean

S7 E162: Jake Gyllenhaal, Ashley Greene, Honor Society

S7 E163: Don Rickles, Anika Noni Rose, Band of Skulls

S7 E164: Pee-wee Herman, Jackie, Tito & Marlon Jackson, Passion Pit

S7 E165: William Shatner, animal trainer Kristin McMillan, Jay Sean

S7 E166: Steven Seagal, Eddie Pepitone

S7 E167: Ray Romano, Kim Kardashian, the Mighty Mighty Bosstones

S7 E168: Zach Braff, Nigel Lythgoe, Michael McDonald

S7 E169: Ty Pennington, 8-year-old Chicken Whisperer Joshua McCarthy, Norah Jones

S7 E170: Rachel McAdams, Johnny Galecki, Allison Iraheta

S7 E171: John Krasinski, James Cameron, Mary J. Blige