Rihanna's Sexy Back Showdown: Met Gala vs. 'Battleship' Premiere (POLL)

She's bringing sexy back! Rihanna stunned fans on not one but two red carpets this week when she stepped out showing a whole lotta skin.

On Monday, the 24-year-old attended the Met Gala in New York City. Sporting long sleeved, figure-hugging Tom Ford gown, RiRi surprised us all when she turned around to reveal her bare back to photogs.

A few days later, the "We Found Love" crooner wowed again as she strutted down the carpet in a high-slit, backless and low-plunging dress that she co-designed for Armani Collection.

Two gowns. One back. Which of Rihanna's sexy looks do you prefer? Cast your vote in the poll!

Be sure to also check more celebrity sexy backs in the gallery above.

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  • FZ

    I think the black dress is more classy.

  • mileyismylife

    she looks beautiful in both dresses, but i like the white gown the best!