Tisdale's role as Sharpay Evans, an over-the-top teenager who will stop at nothing to get what she wants in Disney's "High School Musical," has given her a huge following and altered Tisdale's life forever.

And the 24-year-old actress is expanding her career in new projects, including her role in movie "Aliens in the Attic," which debuts in U.S. theaters on Friday. - more on this story

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