MTV Movie Awards 2013: Selena Gomez reveals she's all grown up with 'Come & Get It' performance

selena-gomez-mtv-movie-awards.jpg Justin Bieber, who?

As Selena Gomez took the stage at the 2013 MTV Movie Awards on Sunday (April 14) to perform her new single "Come & Get It" for the first time, she made one thing very clear: She's all grown up and not looking back.

Flanked by a harem of backup dancers, Gomez owned the stage, debuting her sexier, more mature look and sound.  Singing live while dancing more than she ever has in the past, the former Disney princess proved she's graduated to dance floor queen.

With the rough time ex-boyfriend Bieber has had as of late, we're just hoping this is one performance he missed. We're not sure he'd be able to handle it.

What did you think of Selena's performance?
Photo/Video credit: Getty Images