Guess Me From Behind: Which Brunette Beauty Needs Backup On Set?

We love her dress, but we hope she can find someone to help zip it!

This Texas-born actress costars on a show infamous for its sexy hookups. And now comes a photo of her on the set...in need of a zip-up!

Some more hints on our mystery star: Her character has been the source of much speculation, particularly about which man she may choose as her show moves on into the sunset.

So who is she?

It's Leighton Meester, kindly revealing the sorts of no-nonsense bras that often go under those glam TV frocks.

Whoever made that dress—costume designer Eric Daman, maybe?—we adore it...though we're not sure that the purple suede pumps are quite the right match.

The good news? At least that bra is neutral.