EXCLUSIVE: PEOPLE's HSM Shoot!

See outtakes from our photo shoot with Zac, Vanessa, Ashley and all the stars of High School Musical 3: Senior Year

HEAD OF THE GRASS

Ashley Tisdale cools her heels in the grass at the Encino, Calif., shoot – a much needed breather before the madness of High School Musical 3: Senior Year, which hits theaters Oct. 24.

For more pics, pick up PEOPLE's special HSM issue, on stands Friday!