TV/radio host Adam Carolla; 2005 Wimbledon champion Venus Williams; Young Jeezy performs.
Actress Pamela Anderson; actor Paul Provenza; Ringside performs.
Actor Nick Cannon; producer Joe Simpson; 311 performs.
Actor Kevin Nealon; comic Yucko the Clown; Raheem DeVaughn performs.
Actor Johnny Knoxville; actor Bill Engvall; Roger Alan Wade performs.
Comic Dane Cook; actor Eric Schaeffer; yoga guru Yogi Ramesh.
Actress Jennifer Tilly; actor Tyrese; comic Doug Benson.
Actress Amy Poehler; actor Ice-T; Amy Miles performs.
Actress Kathy Griffin; Dr. Drew Pinsky; Relient K performs.
Comic Howie Mandel; actress Yoon-jin Kim; the Click 5 perform.
Magazine mogul Hugh Hefner (``The Girls Next Door''); comic Louis C.K.; Jason Mraz performs.
Musician Tommy Lee; actor Daniel Dae Kim.
Actress Vivica A. Fox; TV personality Steve-O; Hawthorne Heights performs.
Sports broadcaster Al Michaels; recording artist 50 Cent; Tony Yayo performs with Joe.
Actress Sarah Silverman; actors Michael Ian Black, Michael Showalter and David Wain; BJ Snowden in the Future Talent Showcase.
The Rev. Al Sharpton; actor Tony Hale; Common performs.
Actor Adam Brody; TV personality Kristin Cavalleri (``Laguna Beach: The Real Orange County''); Van Stone performs.
Actor Paul Reiser; USC quarterback Matt Leinart; dredg performs.
Actress Laura Linney; actor Michael McKean; Trapt performs.
Actor LL Cool J; actor Richard Kind; comic Todd Glass.
Actor Tracy Morgan; actor Ralph Macchio; Hanson performs.
Actress Fran Drescher; actor Mike Epps; Amerie performs.
Actor Will Arnett; actress Natasha Henstridge; Blues Traveler performs.
Actor Jim Belushi; actress Kelly Monaco; Damian Marley performs.
Actor Matthew Fox; actor Peter Falk; the Blood Brothers perform.
Actor Johnny Knoxville; actor Chi McBride; Backstreet Boys perform.
Producer Quentin Tarantino; actress Erika Christensen; comic Morgan Murphy.
Recording artist Clay Aiken; actor Scott Caan; Weezer performs.
Actor George Lopez; actor Malcolm David Kelley; Paul Wall performs.
Actor Alec Baldwin; actor Andy Milonakis; comic Kevin Shea.
Actress Cheryl Hines; actor Brian A. Green; Queens of the Stone Age perform.
Actress Jessica Alba; author Neil Strauss (``The Game''); Brad Paisley performs.
Actress Jane Kaczmarek; TV-show host Jeff Probst; comic Kevin Shea.
Comic Andy Dick; actress Sofia Vergara; Sean Paul performs.
Actress Lauren Holly; TV personality Billy Bush; Nickelback performs.
Actor Freddie Prinze Jr.; author Bill Simmons (``Now I Can Die in Peace''); Mike Jones performs.
Actor Anthony Anderson; actress Maggie Grace; comic Jerry Minor.
Actor Mickey Rourke; Indy car driver Danica Patrick; band 3 Doors Down performs.
``South Park'' creators Matt Stone and Trey Parker; actor Rodney Carrington; Shinedown performs.
Actress Roseanne; Black Eyed Peas perform.
Actor Jeff Daniels; actress Constance Marie; Thrice performs.
Actress Bonnie Hunt; skateboarder Tony Hawk; Institute performs.
Actor James Denton; former NFL player Lawrence Taylor; the Go! Team performs.
Radio talk-show host Jim Rome; actress Josie Maran; John Legend performs.
Former college basketball coach Jerry Tarkanian; comic Neil Hamburger.
Actor Val Kilmer; journalist Geraldo Rivera; Kaci Brown performs.
Actor Donnie Wahlberg; R. Kelly performs.
Pugilist Mike Tyson; recording artist Bobby Brown.
Actress Molly Sims; comic Harland Williams; ``Forty Deuce'' burlesque dancers perform.
Recording artist Ozzy Osbourne; actor Josh Hutcherson; Black Starr performs.
Actor Dane Cook; actor Billy Baldwin; strongman Mighty Gonzalez.
Actress Nicollette Sheridan; TV personality Ryan Dunn; Raul Midn performs.
Actress Pamela Anderson; Paul Anka performs.
Actor Michael Rapaport; comic Patton Oswalt; Switchfoot performs.
Comic Sarah Silverman; actor Xzibit; Jamiroquai performs.
Actor 50 Cent; actor Christopher Meloni; Morningwood performs.
Actor William Shatner; actress Kristen Bell; Staind performs.
Destiny's Child performs.
Neil Diamond performs; former NFL player Michael Irvin.
Earth, Wind & Fire performs.
Actor Chris Elliott; actor Marc John Jefferies; Earth, Wind & Fire performs.
Actor Cedric the Entertainer; Kenny Chesney performs.
Actor Fred Willard; actor Tyler James Williams; Lyfe Jennings performs.
