A lot has changed since High School Musical debuted on Disney Channel Jan. 20, 2006. Head back to East High to find out what Zac Efron, Vanessa Hudgens, Ashley Tisdale and more stars are up to now.

Troy returns to East High, his high school in New Mexico, to find that Gabriella is a new student there. They quickly become close friends and accidentally audition for the school musical.

Ashley Tisdale still thinks about East High School now and then. The actress' older daughter, who's still a toddler, just watched High School Musical, the uber-successful 2006 Disney Channel movie ...

"High School Musical: The Musical: The Series" puts a mockumentary spin on the classic Disney Channel franchise. The show takes place where it all started over a decade ago: East High School in ...