Comic Bill Bellamy; hellogoodbye performs.
Professional surfers Kelly Slater and Rob Machado; Mat Kearney performs.
Comic Tom Green; the Honorary Title performs.
Actor Aries Spears; Ben Kweller performs.
Actress Mila Kunis; comic Kyle Kinane.
Actor Joel McHale; Glenn Hansard and Marketa Irglova perform.
Comic Frank Caliendo; A Fine Frenzy performs.
Actor Kevin Nealon; Teddybears perform.
Actress Sarah Shahi; the Tender Box performs.
Actor Jeff Garlin; James Morrison performs.
Actor Jeff Goldblum; Paolo Nutini performs.
Actor Oliver Hudson.
Actor Jon Hamm; Ingrid Michaelson performs.
Actress Cheryl Hines; Jamie T. performs.
Actress Samaire Armstrong; Chamillionaire and Slick Rick perform.
Celebrity blogger Perez Hilton; comic Dwayne Perkins.
Actress January Jones; comic Dwayne Perkins.
Burlesque artist Dita Von Teese; Clay Walker performs.
Comic Jerry Stiller.
Actress Moon Bloodgood; the Last Goodnight performs.
Actor Adrien Brody; New Found Glory performs.
Actor Michael Vartan; Pat Monahan performs.
Musician Brian Welch; Ryan Shaw performs.
Actress Leslie Bibb; Hurricane Chris performs.
Actor David Duchovny; comic Tig Notaro.
Actor Jason Schwartzman; Morrissey performs.
Illusionist Criss Angel.
Actor David Arquette; Regina Spektor performs.
Matt White performs.
Actress Brittany Daniel; Talib Kweli performs.
Former NBA player Kenny Smith; Soulja Boy performs.
Actress Olivia Wilde; Pittsburgh Slim performs.
TV personality Bear Grylls.
Actress Daryl Hannah; Piers Faccini performs.
Model Karolina Kurkova; Plain White T's perform.
Actress Shannyn Sossamon; Alicia Keys performs.
Hockey players Mike Cammalleri and Derek Armstrong; OneRepublic performs.
Actress Yvonne Strahovski; Gym Class Heroes perform.
Actress Bitsie Tulloch; Soulja Boy performs.
Actor Joshua Malina; Pittsburgh Slim performs.
TV personality Adam Carolla; Alicia Keys performs.
Actress Cameron Richardson; Wyclef Jean performs.
Martial artists Jimmy Smith and Doug Anderson; artist Dan Dunn; the Plain White T's perform.
Actress Ali Landry; Gym Class Heroes perform.
``The Girls Next Door''; ``2 Dudes Catering''; David Gray performs.
Young fisherman Aidan Murray Medley; reality TV personality Audrina Patridge; Morrissey performs.
Performer Charles Ross; TV personality Steve-O; Joshua Radin performs.
Olympic swimmer Amanda Beard; OneRepublic performs.
Reality TV star Shanna Moakler; Chingy performs.
Naturalist Jarod Miller; ``2 Dudes Catering''; Regina Spektor performs.
MTV personalities Rob and Big; Glen Hansard and Markéta Irglová perform.
Dancer Miss Dakota; actor Rob Stewart; Josh Kelley performs.
Author Neil Strauss; Regina Spektor performs.
Actor Tom Green; Chuck Prophet performs.
Actor Kevin Hart; A Fine Frenzy performs.
Actor Adam G. Sevani; Louis XIV performs.
Actress Christine Lakin; Joshua Radin and Ingrid Michaelson perform.
Boxer Lennox Lewis; Seether performs.
Actor Zachary Levi; Hellogoodbye performs.
Author Gavin McInnes; model Marisa Miller; Shiny Toy Guns perform.
Actress Summer Glau; Sean Kingston performs.
Actress Ivana Milicevic; John Popper and Justin Spencer perform; Shooter Jennings performs.
Actress Melora Hardin; Lupe Fiasco performs.
Actor Rex Lee; Fat Joe performs.
Actress Brooke Burns; Shiny Toy Guns perform.
