Photo GalleryPEOPLE's Photo Booth

ADRIAN GRENIER

"I feel like I need to be shrunk!" quipped Entourage's Adrian Grenier when he stepped into PEOPLE's backstage photo booth – which reminded him of the room in Charlie and the Chocolate Factory where Mike Teavee was made miniature. Later, at the HBO afterparty, he changed out of his tux into jeans, a T-shirt and sneakers and hit the dance floor.

Next Photo