Who rocked this low cut dress best?Jennifer Lopez vs Kath

The dress looks sleek and sophisticated on both stars from the front, but once they turn to the side and the back, we see quite a lot of skin revealed! It showcases their full backs and their "side-butts" -- which we have seen stars like Gwyneth Paltrow showing off recently, lot of sexy details.

What do you think? Does the dress look better on Lopez or Dunn?