Tisdale lands High School Musical spin-off
The 24 year old has played snooty Sharpay Evans in the film franchise's first three outings, which made stars of Zac Efron and Vanessa Hudgens.
The fourth instalment is set to feature an all-new cast - but Tisdale will play the teenager again in a movie for the Disney Channel, her representative tells JustJared.com.
Sharpays Fabulous Adventures will begin shooting this summer (10) and premiere in 2011.
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