Kara DioGuardi
Rex Lee
Kevin Farley
Bo Burnham
Glenn Howerton
Craig Robinson
Vanilla Ice
David Archuleta
Olivia Munn, Hanson
J.B. Smoove
Lisa Kudrow, Todd Barry, The Submarines
Mary Lynn Rajskub, Trace Adkins
Drew Pinsky, Ben Lyons, G. Love
Dana Carvey, Perez Hilton, Olivia Munn, Penn Jillette
Seth MacFarlane, Andy Richter & Jack Osbourne
Shirley Manson, Jennifer Morrison & Tom Pappa
Cheech Marin, Tommy Chong
Carl Reiner, Bo Burnham
Crista Flanagan
Niecy Nash
Tony Rock
Tim Heidecker, Eric Wareheim