Shirtless Zac Efron Shows Off 8-Pack on 'Neighbors 2' Set

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Shirtless Zac Efron Shows Off 8-Pack on 'Neighbors 2' Set

9:36 AM PDT, September 24, 2015

Zac Efron let it all hang out on the set of Neighbors 2: Sorority Rising, where he wasn't shy about revealing his abs or adjusting his package in a pair of bright orange booty shorts!

1 / 10

Slide 1 of 10

Zac Efron Strips Down for 'Neighbors 2'

FameFlynet

Zac Efron let it all hang out on the set of Neighbors 2: Sorority Rising, where he wasn't shy about revealing his abs or adjusting his package in a pair of bright orange booty shorts!