Zac Efron, Vanessa Hudgens, Ashley Tisdale, Lucas Grabeel, Corbin Bleu and Monique Coleman are all now ultra-super-double-secret officially confirmed to appear in High School Musical 3: Senior Year, a feature-film follow-up set to begin production in spring 2008.

According to the press reelase from Walt Disney Pictures, HSM3 finds high school seniors Troy and Gabriella "facing the prospect of being separated from one another as they head off in different directions to college. Joined by the rest of the Wildcats, they stage an elaborate spring musical reflecting their experiences, hopes and fears about their future."

Yeesh. Does nobody simply sign yearbooks anymore?