Jennifer Lopez Flashes Her Bare Butt In Throwback Photo

Jennifer Lopez has a new single to promote, Ni Tu Ni Yo, which is currently the number two music video on iTunes. And the 47-year-old siren certainly knows how to get the word out there - with a bikini photo.

The Shades Of Blue actress shared an image of herself in a black bikini while in Florida. And because she was laying on her stomach, the cover girl's famous derriere was on display.