John Krasinski, James Cameron, Mary J. Blige

Rachel McAdams, Johnny Galecki, Allison Iraheta

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

Zach Braff, Nigel Lythgoe, Michael McDonald

Ray Romano, Kim Kardashian, the Mighty Mighty Bosstones

Steven Seagal, Eddie Pepitone

William Shatner, animal trainer Kristin McMillan, Jay Sean

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

Don Rickles, Anika Noni Rose, Band of Skulls

Jake Gyllenhaal, Ashley Greene, Honor Society

Matt Dillon, Nikki Reed, Birdman featuring Jay Sean

Magic Johnson, Kellan Lutz, Trey Songz

Charles Barkley, Peter Facinelli, Leona Lewis

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

Heidi Klum, Ron Artest, Weezer

Robert Pattinson, Kristen Stewart, Taylor Lautner, Death Cab for Cutie

Carrie Underwood, Heidi Montag & Spencer Pratt

50 Cent, Marv Albert

John Stamos, Emily VanCamp, "Dancing with the Stars" castoff Joanna Krupa, OneRepublic

Diddy, Super Dave Osborne, Huey Lewis & the News

Danny DeVito, Streeter Seidell & Amir Blumenfeld, Switchfoot

Dominic Monaghan, Holly Hibner & Mary Kelly, Los Lonely Boys

Chris O'Donnell, Bill Simmons, "Dancing with the Stars" castoff Aaron Carter, Amerie

Ted Danson, Khloe Kardashian, Lamar Odom, Chickenfoot

Jesse Williams, Florence and the Machine

Joshua Jackson, Big Bird, Ghostface Killah featuring Raheem DeVaughn

Pamela Anderson, "Dancing with the Stars" castoffs Mark Dacascos & Michael Irvin, Manny "Pac-Man" Pacquiao, White Rabbits

Paris Hilton, Slipknot

Jason Schwartzman, Rod Stewart

James Marsden, Atticus Shaffer, Flyleaf

Dr. Mehmet Oz, "Dancing with the Stars" castoffs Melissa Joan Hart and Louie Vito, Morningwood

Terry Bradshaw, Catherine Keener, Echo & the Bunnymen

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

Salma Hayek, Rico Rodriguez, Dead by Sunrise

Edward Norton, Paul Shaffer, "Dancing with the Stars" castoff Natalie Coughlin, the Sounds

Serena Williams, Dr. Drew Pinsky, Eric Church

Taye Diggs, Kristin Cavallari, Harper Simon

Jamie Foxx, Toby Keith

Jack Black, "Dancing with the Stars" castoff Chuck Liddell, Cobra Starship

Michael Moore, Malin Ackerman, the Backstreet Boys

Kelsey Grammer, Stana Katic, Motorhead

Joel McHale, Richard Belzer, KISS

Patricia Heaton, Debi Mazar, Tom DeLay, Gossip

Woody Harrelson, Whitney Port, Shinedown

Hayden Panettiere, Matthew Rhys, Joss Stone

Rebecca Romijn, Joseph Fiennes, Alice in Chains

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

LeBron James, his high school basketball teammates Dru Joyce, Romeo Travis, Sian Cotton and Willie McGee, Esther Dean, Chris Bianco

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

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

David Duchovny, Carmelo Anthony, Kid Cudi

Christian Slater, Ed O'Neill, Sofia Vergara, Shakira

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

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

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

Julie Bowen, Rumer Willis, the Used

Nick Cannon, Former Gov. Rod Blagojevich, White Lies

Kathy Griffin, Ryan Kwanten, Brendan Benson

Jennifer Connelly, Jeff Ross, Boys Like Girls

Gerard Butler, Nate Berkus, Maxwell

Kathie Lee Gifford, Milo Ventimiglia, R. Kelly

Emile Hirsch, Amber Valletta, St. Vincent

Kyra Sedgwick, Patton Oswalt, DataRock

Dylan McDermott, B.J. Novak, the Dead Weather

Shaquille O'Neal, Selena Gomez, Darius Rucker

Robin Williams, Bobcat Goldthwait, Matt & Kim

Gordon Ramsay, Rob Zombie, Friendly Fires

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

Sienna Miller, Dave Salmoni, Doug Benson

Vanessa Hudgens, Eli Roth, Miike Snow

Ashton Kutcher, Nigel Lythgoe, the Script

Anne Heche, Aubrey Plaza, Diane Birch

Seth Rogen, Melissa Sagemiller, Jack's Mannequin

Jonah Hill, Mary McCormack, Ryan Sheckler

Leslie Mann, Eric Winter, Parachute

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

Katherine Heigl, David and Shaun Cassidy, La Roux

Zooey Deschanel, Rev. Al Sharpton, Jewel

Seth Green, "Bachelorette" Jillian Harris, Zac Sunderland

David Arquette, Jill Wagner, Linkin Park

Teri Hatcher, Danica Patrick, Daughtry

Josh Lucas, Terrell Owens, Pitbull

Larry King, Marissa Miller, Chester French

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

Megan Fox, David Cross, Phoenix

Shia LaBeouf, June Diane Raphael, Eric Hutchinson

Josh Duhamel, Tracy Hutson, Bat For Lashes

David Arquette, Jill Wagner, Linkin Park

Kobe Bryant, Derek Fisher

Kathy Griffin, Ramon Rodriguez, Ben Harper

Roseanne Barr, Ryan Kwanten

Ty Pennington, David Sedaris, the Jonas Brothers

Artie Lange, Adam Perry Lang, No Doubt

Paris Hilton, Ken Jeong, Blink 182

Paris Hilton, Ken Jeong, No Doubt

Thomas Haden Church, Ed Helms, 311

Heather Graham, Lance Krall, Katie Melua

Danny McBride, Nia Vardalos, Taking Back Sunday

Hank Azaria, Anton Yelchin, Eminem

Tim Daly, Common, Busta Rhymes

Ben Stiller, Shawn Johnson and Mark Ballas, No Doubt

Eminem, Mike Tyson

Eminem

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

Matthew Fox, Benjamin McKenzie, Ciara

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

Chris Pine, Aziz Ansari, Scott Weiland

Hugh Jackman, John Cho, Flo Rida

David Spade, Zoe Saldana, Black Eyed Peas

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

Matthew McConaughey, Kara DioGuardi, Jason Aldean

Brooke Shields, Balthazar Getty, Kumail Nanjiani

Dominic Monaghan, J.J. Abrams, Bang Camaro

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

Jamie Foxx, Elizabeth Mitchell

Channing Tatum, Elisha Cuthbert, Depeche Mode

Justin Timberlake, Eliza Coupe, the Whip

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

Six-year-old genius Pranav Veera, Pete Yorn

Zac Efron, Patti Stanger, Franz Ferdinand

Christina Applegate, Mike Tyson, Dana Gould

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

Ben Affleck, Lily Allen

Vin Diesel, Anna Faris, Eli Young Band

Amy Poehler, Jordana Brewster, Les Claypool

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

Paul Giamatti, Jim Gaffigan, Keri Hilson featuring Lil Wayne

Ozzy, Sharon, Jack and Kelly Osbourne, Bobby Cannavale, Todd Glass

John Stamos, Dr. Drew Pinsky, Blue October

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

Portia de Rossi, Melissa Rycroft, Motley Crue

John Cena, Christopher Mintz-Plasse, the Duke Spirit

Andy Samberg, Ashley Scott, MSTRKRFT

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

Kristin Stewart, Dwayne Johnson, the Dream

David Hasselhoff, Eliza Dushku, Pendulum

Jaime Pressly, animal trainer Kirstin McMillan, the Pretenders

Heidi Klum, Bryan Cranston, Chris Cornell

Kate Walsh, Carla Gugino, Raphael Saadiq

Bonnie Hunt, Nathan Fillion, Oren Lavie

Charles Gibson, Lil' Wayne, Robyn

Evangeline Lilly, Jason Mesnick, New Kids on the Block

Calista Flockhart, John Michael Higgins, Nick DiPaolo

Rob Lowe, Khloe Kardashian, Living Things

Don Rickles, Ben Sollee

The Jonas Brothers, Jimmie Johnson, Darius Rucker

Dev Patel, Robin Roberts, Kinky

Rosie Perez, Danny McBride, Anya Marina

Naomi Watts, Whitney Port, K'Naan

Tyler Perry, Blues Traveler

Rerun TBA

Johnny Knoxville, Tricia Helfer, Mark Seliger

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

Andy Dick, Grant Show, the Red Jumpsuit Apparatus

Amy Brenneman, Steve-O, the Little Ones

Teri Hatcher, Larry Wilmore, Jazmine Sullivan

Vanessa Minnillo, Morrissey

Justin Long, Camilla Belle, Nick Kroll

John Cleese, Chris Ayres, the Bird and the Bee

Kristen Bell, Carlos Bernard, Benji Hughes

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

Adam Carolla, Brody Jenner, Disturbed

Miranda Cosgrove, Eric McCormack, Boz Scaggs, Dov Davidoff

Tim Roth, Joan Rivers

Brendan Fraser, Jonathan Goodwin, Blake Shelton

Randy Jackson, Diablo Cody, Thriving Ivory

Sarah Silverman, Soulja Boy Tellem

Kevin James, Evan Rachel Wood, Delta Spirit

Dustin Hoffman, jet pack pilot Eric Scott, Crooked X

Mickey Rourke, Rowdy Roddy Piper, Michael Strahan, Morgan Murphy

Kiefer Sutherland, Malcolm Gladwell, David Cook

Michael Imperioli, Jason Mesnick, Zac Brown Band

Anne Hathaway, Jensen Ackles, Lenka

Ron Howard, Jeffrey Dean Morgan, Gabe Dixon Band

Kathy Griffin, Sally Hawkins, Mike Birbiglia