Black Eyed Peas, Derek Hough, Hayley Erbert, Fortune Feimster, Jason Biggs, Jenny Mollen, Julianne Hough, Kal Penn, The Muppets, NE-YO, Raven Symoné and Retta perform classic Schoolhouse Rock! hits.
Ryan Seacrest
Julianne Hough
Kal Penn
Jason Biggs
Shaquille O'Neal
Derek Hough
Ne-Yo
will.i.am
Raven-Symoné
Retta
Jenny Mollen
Kara Lindsay
Kelly Sweeney
Hayley Erbert
Fortune Feimster
Matt Vogel
Eric Jacobson