Britney Spears Hits the 2012 iHeartRadio Music Festival!

Posted Friday September 21, 2012 11:52 PM GMT

Taking a break from her "X-Factor" efforts for a music-filled weekend in Sin City, Britney Spears was a special guest at the 2012 iHeartRadio Music Festival in Las Vegas, Nevada on Friday night (September 21).

The "Gimme More" singer donned a sexy leather LBD while rocking dyed hair tips as she posed backstage alongside Ryan Seacrest before taking the MGM Grand Garden Arena stage as one of the celebrity presenters.

With other stars roaming the backstage area including Gwen Stefani, Mario Lopez and Kathy Griffin, this year's iHeartRadio Music Festival is lined up to be quite the spectacle.

With Miss Stefani and her No Doubt bandmates getting things underway, other Day One acts include Miranda Lambert, Lil' Wayne, Usher and Green Day while Rihanna will be closing things out with an 11:50 PM PT set.

Stay connected with GossipCenter thoughout for complete coverage of the festivities, with a live feed of fan photos from the iHeartRadio Music Festival available by clicking here!

Photo Credit: Getty Images