Zac Efron and His Girlfriend Hang Backstage at the MTV Movie Awards

Zac Efron had Sami Miro by his side to celebrate his wins at the MTV Movie Awards on Sunday night. She wore a short, long-sleeved black dress to the show, and Zac was all smiles with his arm around her in the photo. Sunday's award show was a fun night for Zac, who was among this year's MTV Movie Award winners. He took home the award for best shirtless performance thanks to his role in Neighbors, plus best duo with his costar Dave Franco.