August 26, 2008 05:05 PM

The movie may not be hitting theaters until Oct. 24 – but the cast of High School Musical 3: Senior Year is giving fans a little taste of what to expect musically.

Check out a the first, official music video for “I Want It All,” featuring Ashley Tisdale and Lucas Grabeel. The snazzy production number finds Sharpay and Ryan back in the cafeteria, belting their hearts out.

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