Zac Efron in the Gym, on the Dance Floor

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Zac Efron is a busy, young Hollywood star.

Somehow, though, the star of High School Musical finds time to whisper sweet nothings into the ear of Vanessa Hudgens, star in big-time summer movies and pump some serious iron.

Below, the actor that appears alongside Ashley Tisdale on screen is appearing to work up a sweat on the bench press at a 24 Hour Fitness Gym on Thursday in Los Angeles.

Yes, that's Zac Efron pumping iron. Swoon away, girls.

Where does he get the energy from? Imagine if Britney Spears had this sort of stamina. She could party 24 hours a day!

Moreover, Efron and the rest of the cast of Hairspray made a brief appearance on last night's episode of So You Think You Can Dance. We've got the clip in our celebrity gossip video section.

And let's just say the young Z puts back-up dancer Kevin Federline to shame...


Zac Efron Biography

Zac Efron, Vanessa Hudgens
Zac Efron is a young, adorable actor. He's often compared to Matt Damon and Leonardo DiCaprio. His career begin with High School Musical,... More »
San Luis Obispo, California
Full Name
Zachary Efron

Zac Efron Quotes

Everything's been stepped up a few notches, all the dances, and I think the songs are pretty catchy this time around. And it's our senior year, so we've got graduation and prom to look forward to. All fun things to have in a movie.

Zac Efron [on High School Musical 3]

You never know with teenage girls. It's funny. But they're always, most of the time they're pretty respectful, and I love 'em. I'm very grateful.

Zac Efron