The 27-year-old actor was joined on stage by his We Are Your Friends co-star Emily Ratajkowski during the show.
Zac was also a nominee that night and he went home with two awards – Best Shirtless Performance and Best On-Screen Duo with Dave Franco for their movie Neighbors. Make sure to watch the funny moment from his acceptance speech!
Sami posted the photo of herself and Zac on her Instagram account.
25+ pictures inside of Zac Efron attending the 2015 MTV Movie Awards…