'High School Musical 3' Is On

(andPOP) - What time is it?

Time for another High School Musical, with all six stars of the hit series returning for more song-and-dance hijinks.

After months of negotiation, Zac Efron, Vanessa Hudgens, Ashley Tisdale, Lucas Grabeel, Corbin Bleu and Monique Coleman have all signed on for "High School Musical 3: Senior Year."

The movie, expected to be the last in the series, finds super-couple Troy (Efron) and Gabriella (Hudgens) dealing with the prospect of being separated as they head off to different colleges.

"I'm excited," said Tisdale, who plays diva Sharpay Evans, about the movie. "But it's going to be sad. It seems like it will be graduation, and I'll be crying while we're filming."

Shooting will begin in the spring under the direction of Kenny Ortega.

It will be the first big-screen adventure for the East High gang, who debuted along with the first "HSM" on the Disney Channel in January 2006. Not only did it become the highest-rated program in the channel's history, the soundtrack to the first sequel was also the second-best-selling album of 2007.