Zac Efron and Jimmy Kimmel: Bra Challenge (Video)

Last week, Zac Efron was interviewed by an Australian reporter and was asked to demonstrate proper bra unhooking technique. The video went viral and when Zac appeared on Jimmy Kimmel Live last night, he was asked to demonstrate again…in a very different way.

Zac chatted with Jimmy about his new movie The Lucky One, his relationship with little bro Dylan, and having a big crush on his babysitter when he was younger.

To close out the segment, Jimmy and Zac had a bra unhooking contest except the bras weren’t on pretty ladies. They were on Guillermo and “other Guillermo” who each wore four bras. Zac was the victor.

Watch Zac’s interview below & inside. Check out our interview from the premiere here.

Photos: ABC/KAREN NEAL