Shape's New Cover Girl: Ashley Tisdale!

You probably thought Ashley Tisdale had a pretty good bod just from seeing her in the High School Musical movies, but the new cover of Shape magazine is an eye-opener. Posing in a yellow bikini, Ashley reveals a highly toned figure that is the result of a cardio and resistance combo training workout, three to four days a week.

Ashley tells Shape she used to hate the gym and ate junk food whenever she wanted until she injured her back of the set of The Suite Life of Zack & Cody. The lingering injury made her realize she needed to strengthen her core and head to the gym, a place she hated.