It's Official: Cast Returns for High School Musical 3

All six of the High School Musical stars have officially signed on for High School Musical 3: Senior Year, Walt Disney Studios Motion Picture Productions announced Monday.

Zac Efron, Vanessa Hudgens, Ashley Tisdale, Corbin Bleu, Monique Coleman and Lucas Grabeel will star in the third and final installment, a feature film. The first two movies aired to a record number of viewers on The Disney Channel.