Vegas was the place to be this weekend — Rihanna threw girlfriend Katy Perry a crazy cool bachelorette party filled with booze and bikinis! But before the girls stripped down, they each sported a sexy, skintight mini frock for a night with the Cirque du Soleil Ka performers. Rihanna sported a white, body-con dress with nude pumps, while Katy wore a sequined, polka-dotted black dress with Jimmy Choo platform crystal sandals. Both ladies look hot, hot, hot, but who wore her mini frock better?
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