Friday's fashion face-off features some sexy, Posh black dresses.
The Gossip Girl star picked a Victoria Beckham dress for an N.Y.C. charity event, while the Pussycat Doll worked a little black number for X Factor auditions.
Who rocked theirs better, the sultry actress or the dynamic Dancing With the Stars champion? Your votes will determine the answer. Go to it below ...
Who wore their black dress better? (thehollywoodgossip)