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