But it helps to have a good personal trainer. The 23-year-old, who last year had a nose job to correct a breathing problem, reveals that keeps his splendid figure through the old-fashioned combination of diet and exercise. The star High School Musical show his form in a shade of bright yellow bikini on the cover of Shape magazine. L actress admits a love of carbs, but says his diet has improved since he started working on rigor. Ashley said Hes Cute Which Makes It Fun And He Never Lets Our Exercise Session Get Boring. ASHLEY TISDALE looks nothing like a sexy schoolgirl in this magazine shoot.