Watch Zac Efron Demonstrate How to Unhook a Bra

Zac Efron and The Rock show off their massive 'cheat day' feasts after Baywatch shoot

Zac Efron OK! Magazine

Zac Efron - Vulture

Couple to Throuple: Season 1 Episode 3 Lauren's Bra Top

Zac Efron Vs. Jimmy Kimmel: Who Can Unhook A Bra Strap Faster! - Perez Hilton

We Are Your Friends': Portrait of the Artist As a Slightly Douchey Young Man

Zac Efron Wins Bra Unhooking Contest on Jimmy Kimmel Live

Zac Efron Demonstrates How to Unhook a Bra

Zac Efron shows off his muscles in clingy shirt while filming Neighbors 2 in LA

Zac Efron Interview on His Career, His Health, and His Next Movie

Jimmy Kimmel and Zac Efron's bra-unhooking competition

Zac Efron shows Australian radio hosts Mel how to snap open a bra with one hand while promoting The Lucky One - Mirror Online

Zac Efron Wins A Bra Unhooking Contest On 'Jimmy Kimmel' (VIDEO)

Transformed Efron gives his all in tragic, true-life wrestling tale, Showcase