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Rihanna and Kim K's Givenchy Battle

Rihanna vs. Kim K

By ANTOINETTE BUENO

It's a high-fashion faceoff between Rihanna and Kim Kardashian!

Kim Kardashian wore this long-sleeve navy blue Givenchy dress this weekend at the Dash Los Angeles store opening, which Rihanna already sported last week in NYC.

While Kim chose to pair the modest dress with bold Christian Louboutin python pumps, Rihanna showed off her stems with open toe ankle-strap heels. Completing RiRi's more demure look than usual was a ballerina bun updo and a necklace to complement the dress's plunging neckline.

But like so many of Kim's fashion battles, it all comes down to her curvier physique. Does her fuller figure fill out the dress better, or is Rihanna's size zero itty-bitty waist more preferable in this Givenchy number?