It's a battle of two bombshells in the same Christian Dior outfit!

On Sunday, "Real Housewives of Atlanta" star Kim Zolciak-Biermann tweeted a photo of her almost-dress for costar NeNe Leakes' wedding.

The 35-year-old posted the makeup-free picture of her sporting the tangerine Dior skirt with a black shirt and black pumps. Kim wore her natural hair in an updo for the candid snap.

Probably a good thing she went with a different look for Leakes' wedding -- Jennifer Lopez wore the same ensemble last week at her star unveiling on the Hollywood Walk of Fame!

For the actress' big day she wore the bright ballgown skirt with a white fitted top. The 43-year-old finished her look with Brian Atwood black ankle strap heels and likewise wore her hair in an updo.

We have to give the nod to J.Lo, she obviously looks much more put together ... we just wish she'd gotten rid of some of those wrinkles before the big day.

Who do you think wore it better? Click "Launch Gallery" above to vote and see even more stars battling it out in dueling dresses!

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