Actress Nikki Reed; Bubba Sparxxx performs with Mr. Collipark.
Actress Leslie Bibb; Wolfmother performs.
Actor Vincent Pastore; comic Eugene Mirman; actress Emmanuelle Chriqui; Seether performs.
Actress Brooke Burke; the Constantines perform.
Dog behaviorist Cesar Millan; Jewel performs.
Dr. Drew Pinsky; Rocco DeLuca and the Burden perform.
Actor Steven R. Schirripa; former boxer Sugar Ray Leonard; comic Tammy Pescatelli; Rhymefest performs.
Actress Leelee Sobieski; Kill Hannah performs.
Actress Robin Tunney; comic Craig Shoemaker.
Actor Anthony Mackie; Rocco DeLuca & the Burden perform.
Actress Shannen Doherty; football commentator Jerome Bettis; Under the Influence of Giants performs.
Actor Jason Statham; comic Whitney Cummings.
Actor Michael Rapaport.
NBA player Stephon Marbury; Landon Pigg performs.
Actor Norm MacDonald; actress Amy Smart; the Roots perform.
Actress Rebecca Gayheart; Godsmack performs.
Actress Hayden Panettiere; Meg & Dia perform.
Actor Tom Green; Fiona Apple performs.
Actor James Franco; rapper Method Man; the Panic Channel performs.
Actor Jet Li; Hoobastank performs.
Actress Krista Allen; Alexi Murdoch performs.
Actor Jon Heder; Living Things perform.
Actress Brittany Daniel; Ludacris performs.
Actress Kerry Washington; comic Jimmy Carr.
Actress Jacinda Barrett; Ben Kweller performs.
Actor Dax Shepard; Jose Gonzalez performs.
Actor Michael Clarke Duncan; actress Arielle Kebbel; Flyleaf performs.
Actor Anthony Anderson; Amos Lee performs.
Actor David Cross; Amos Lee performs.
Actor Kevin Nealon; the Duke Spirit performs.
Animal handler Jarod Miller; Busta Rhymes performs.
Comic George Lopez; Alien Ant Farm performs.
Actor Scott Wolf; Chingy performs.
TV personality Cesar Millan.
Comic Wanda Sykes; boxer Floyd Mayweather Jr.; Gomez performs.
Actress Rachael Harris; actor Dean Edwards.
Actor Barry Watson; Regina Spektor performs.
Actor Jason Segel; Wolfmother performs.
Actor Tom Arnold; actress Joey Lauren Adams; G. Love performs.
TV personality Sue Johanson; Radio 4 performs.
Comic Bill Bellamy; Xzibit performs.
Actor Shia LaBeouf; Seether performs.
Actress Sarah Chalke; the Game performs.
Actor Adam Goldberg; David Ford performs.
Actor Ice-T; Head Automatica performs.
Ballplayer David Eckstein; Army of Anyone performs.
Actress Adrianne Palicki; Fat Joe performs.
Actor Donald Faison; comic Gary Gulman.
Comic Frank Caliendo; James Blunt performs.
Actress Minka Kelly; Matt Costa performs.
Comic Aries Spears; actress Paz Vega; the Rapture performs.
Actor Nick Cannon; Landon Pigg performs.
Actor Freddy Rodriguez; Young Jeezy performs.
Actor Marlon Wayans; Flyleaf performs.
Actor 50 Cent; voice-over artist Don LaFontaine; OK Go performs.
Comic Kathy Griffin; Kill Hannah performs.
Actor Michael Rapaport; Ziggy Marley performs.
Actor Giovanni Ribisi; Nas performs.
Actress Laura Dern; actress Autumn Reeser; the Goo Goo Dolls perform.
Ballplayer Barry Zito; Alexi Murdoch performs.
Actress Kelly Hu; Unwritten Law performs.
Actor Rob Corddry; Chingy performs.
Radio-show host Adam Carolla; Rock Kills Kid performs.
Actress Dominique Swain; Aaron Lewis performs.
TV personality Richard ``Mack'' Machowicz; Joshua Radin performs.
