All Cast Members to Return for 'HSM 3'

News that the entire cast of "High School Musical" will be back for the third installment is old news to "Extra!"

Though Disney officially announced yesterday that the cast has signed on for "HSM: 3," due in theaters in October, "Extra" broke the news back in November.

Ashley Tisdale even filled us in on the "HSM: 3" schedule in this story.

"We'll rehearse in February and start filming in March," Tisdale told "Extra" at the American Music Awards.