New Music Video! Jennifer Lopez in 'On the Floor'

"American Idol" judge and singer Jennifer Lopez debuted her new music video "On the Floor" during Thursday's "Idol" show.

Lopez gave her fans the rare opportunity to vote on three different endings. Watch which one they picked in this jammin' video, featuring Pitbull!

Tune in to "Extra" on Friday to see Mario Lopez's exclusive interview with Jennifer at The Grove!