Hanna Montana star Miley Cyrus dressed as Julia’s character from the movie Pretty Woman at an 80s-themed birthday bash at New York’s Canal Room on Wednesday.

Miley doesn’t actually turn 17 until Monday, but that didn’t stop her from enjoying the entertainment, a performance from Constantine Maroulis and the cast of Broadway musical Rock of Ages, the New York Post: “Miley had seen the show two weeks ago and loved it, so her mom Tish brought the cast in to surprise her.

But I’m not sure who more into Constantine — Miley or her mother was. Between songs from the musical, Miley grabbed Constantine and danced with him at the front of the stage and then Tish joined in.”