The fourth entry in the High School Musical franchise will air on Disney Channel next year.
High School Musical East Meets West, which will be helmed by choreographer (Flashdance, A Chorus Line) and director (Shout) Jeffrey Hornaday, will bow in fall 2010.
Casting is underway for the fourth installment, a classic story set against the cross-town school rivalry between the East High Wildcats and West High Knights.
High School Musical premiered in January 2006 on Disney Channel U.S. and posted the highest ever ratings for an original telefilm on the network at the time. High School Musical 2, which debuted Aug. 17, 2007, became the most-watched program in cable history, with 18.64 million viewers on a live+ seven-day basis.
Walt Disney Pictures debuted High School Musical 3: Senior Year in October 2008. Its premiere weekend box office sales marked the highest debut ever for a musical and for a live-action G-rated film. It grossed $250 million at the worldwide box office.