Because He’s Hot! Shirtless Zac Efron Spotted Flashing His Underwear In Sydney (PHOTOS)

Gabrielle Chung / April 7, 2012

Zac Through the Years
The evolution of Zac Efron!
We didn’t see London or France, but we certainly got an eyeful of Zac Efron’s underpants!

On Saturday, The Lucky One star was seen kicking back at his Sydney hotel in very low-riding trousers. As if the sight of his Calvin Klein boxers wasn’t enough to make the ladies swoon, Zac also stripped down on his balcony before relaxing in the sun sans shirt.

Talk about an eye-candy overload!

However, despite possessing some serious abs, the 24-year-old actor says that he doesn’t think of himself as a heartthrob. Do you agree? Check out more of shirtless Zac then weigh in in the comments below.