Zac Efron Sticks Hand in Shorts, Flaunts Eight Pack Abs!

Zac Efron puts his hand down his shorts while stripped down for a scene in his movie Neighbors 2 on Tuesday (September 22) in Atlanta, Ga. The 27-year-old actor was seen going shirtless and looking incredibly ripped – he even has eight pack abs! PHOTOS: Check out the latest pics of Zac Efron Zac previously