If you thought Zac Efron and Vanessa Hudgens growing up would stop Disney from making another High School Musical film, you thought wrong. The Mouse has officially started its search for new shiny-faced teens to star in the fourth film in the decade-old franchise, launching a nationwide casting search for the newest East High Wildcats. (Menacing-looking teens are invited to audition for their traditional rivals, the West High Knights.) Will these new stars be adorable, tan, and peppy? In the words of the master: Bet on it!