Eva Mendes and Reese Witherspoon walked the red carpet in royal blue Stella McCartney dresses, and we took note. Eva's one-shoulder gown stunned at the fashion-heavy Met Gala, while Reese took a sexier turn in her fitted sweetheart-neckline dress at a Water For Elephants premier. The vibrant color looks incredibly fresh, and we're going to try it for our next dress-up opportunity. Click on our shopping widget to get the look right away.
Looking sexy in Stella McCartney, Eva Mendes walked the red carpet at the 2011 Met Gala in style. There's a lot to love, from the one-shoulder silhouette to the accordion pleating and gold accessories — what's your favorite element? Or maybe you prefer her half-up/half-down hair? Whatever it is you're digging (or not), tell us in the comments. 
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