High School Musical 4

A fourth installment of Disney's High School Musical is in the works. "We are writing High School Musical 4," Disney Channel Worldwide President Rich Ross told the Hollywood Reporter Tuesday. Vanessa Hudgens, Zac Efron, Ashley Tisdale, Lucas Grabeel, Corbin Bleu and Monique Coleman are headed to Utah later this month to shoot High School Musical 4. Ross said "all the cast" may not return for the HSM4, but that some new characters may be introduced in HSM3. While recently promoting her Degree Girl contest, Tisdale, 22, told Usmagazine.com that "we love HSM, but we kind of have to move on."It will always be a part of us that we loved to do" she added. "All of us have gone through so much together, like winning the Billboard award and an Emmy and an American Music Award! That’s something that we’ll always remember!"

Here is the link so you can get instructions and apply for principal roles and extra roles: