J.Lo's back and better than ever!

Two days ahead of her music video debut for her single "Goin' In," Jennifer Lopez has shared a sneak peek of the hotly anticipated jam on her official blog, and let's just say we can't wait to see the whole thing!

Clad in a midriff baring outfit with bedazzled lips, the pop diva goes back to her roots with some amazing choreography and visual concepts. It's a must see!

The Bronx-born fly girl turns 43 tomorrow, but she's proving age ain't nothin' but a number!