Paris Hilon resurfaces as a DJ

 Paris Hilton made her big-time professional DJ debut at the bash, playing a one-hour set for 30,000 concert goers.

"I had so much fun deejaying at the Pop Music Festival," the 31-year-old heiress exclusively tells E!. "I could not have been happier with the crowd's reaction to my set. It felt so good to be in control of the party and see everyone dancing!"

Hilton took the stage after Lopez and Clarkson's performances, closing the show with songs like Rihanna's "We Found Love" and her own brand new single "Last Night."
Hilton says she's been spending lots of time perfecting her skills on the turn tables. "Recently I have been working in the studio with DJ Poet, who produces and deejays for the Black Eyed Peas," she dished.