Jennifer Lopez: 'American Idol' Finale Performance! (Video)

Jennifer Lopez hits the stage for a performance of her new single “Live It Up” during the American Idol Season 12 Finale on Thursday (May 16) at Nokia Theatre L.A. Live in Los Angeles.

The 43-year-old entertainer was joined for the performance by her collaborator Pitbull.

“About to #LIVEITUP on @americanidol #idolfinale!!!” Jennifer tweeted before her performance. Buy the song right now on iTunes!

The day before, Jennifer was in New York City to attend the upfront presentation for her new television network NUVOtv.

10+ pictures inside of Jennifer Lopez and Pitbull performing on American Idol…