It’s Zac Efron’s birthday! The actor turned 29 on Tuesday. It feels like just yesterday he was making fans swoon in “High School Musical.” But Zac has grown up, going from a dreamy teen to a hunky man. To celebrate the things he’s accomplished in his career so far, we took a look at some of Zac’s best work: namely, his bod. In honor of his special day, we’ve gathered some of our favorite gifs and pics of Zac without a shirt on–and in a few pics, even less.