Zac Efron: Tight Tee Shirt for 'Townies'

Zac Efron wears a super tight tee on the set of Townies in Los Angeles on Wednesday afternoon (April 24).

The 25-year-old actor was spotted grabbing a cool drink at craft services and sharing a laugh with actor Seth Rogen.

Zac also sported a fraternity tattoo on his bicep.

PHOTOS: Check out the latest pics of Zac Efron

Also starring Dave Franco and Christopher Mintz-Plasse, the flick is about a frat boy whose behavior affects a local neighbor’s family life.

Just the day before, Zac was spotted in a candy-striped robe.