Are you watching Yo Gabba Gabba yet? If not, it's probably safe to say that your kids are. The hit Nickelodeon show has won over preschoolers, teens, and parents alike since its premiere two years ago, with its catchy tunes, retro-style graphics, and lesson-teaching characters. DJ Lance Rock has a celebrity following that already includes Brad Pitt (who dressed up like him for Halloween last year), the Klum/Samuel family and Christina Aguilera.
The celebs are not just tuning in with their lil ones, they are guest starring on the program too. As Yo Gabba Gabba enters its third season, the celebrities stopping by for a party in their tummies will include Sarah Silverman, Weird Al Yankovic, Jack McBrayer, Paul Scheer, Weezer, Anthony Bourdain, Mos Def, Devo, Fred Armisen, Erykah Badu, Flaming Lips, The Killers, Solange Knowles, Mix Master Mike, Angela Kinsey, and Marissa Jaret Winokur.
Which celeb guest star are you most excited to see?