Jennifer Lopez had a red hot birthday this week.  And she was spotted in the same dress that Kim Kardashian wore to the 2012 BET Awards.  Decide who flaunted their curves best inside...

On her way to her surprise 43rd birthday party (hosted by her boyfriend Casper) aboard a yacht in New York Monday evening, pop diva J.Lo rocked the 2012 Tom Ford long sleeved zippered back dress for her big night.  The lady in red paired her fiery dress with a pair of red Christian Louboutin Illusion ankle strap pumps.  And a gold clutch, gold hoops and a gold cuff bracelet all complimented her look.

But earlier this month, Kim K. was her boo Kanye West's arm piece for the 2012 BET Awards.  And she rocked the same Tom Ford dress in stark white.  Kim paired her dress with a pair of gold Tom Ford sandals and no jewelry. And topped it off with a bouffant yet sleek 'do.

Both ladies kept the back of the dress unzipped for a sexy edge.  So...

WHO ROCKED IT BEST?!

Pics: SPLASH/GETTY