School is officially back in session, as all the stars of “High School Musical” have officially signed on for the third edition of the franchise.

Oren Aviv, president of Walt Disney Studios Motion Pictures Production, announced yesterday that Zac Efron, Vanessa Hudgens, Ashley Tisdale, Lucas Grabeel, Corbin Bleu and Monique Coleman will all star in “High School Musical 3: Senior Year.”

The last instalment shattered records, boasting the largest audience ever for any basic-cable telecast. This time, the Wildcats will have their sights set even higher, as HSM3 will be released to theatres as a full feature film.

Senior year will find Troy (Efron) and Gabriella (Hudgens) worrying about their future together as college approaches. Efron and Hudgens’ off-screen relationship has been plagued constantly with break up rumours, but they appear to be still together.

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