Mary-Kate Olsen and Ashley Olsen have been named the most stylish sisters by Vogue and they will be on the cover of the special Best Dressed issue! Strangely enough, Mary-Kate and Ashley have never been on the cover of Vogue, so it's about time!

The twins beat out other celebrity sisters like: Dakota and Elle Fanning, Kate and Pippa Middleton, Beyonce and Solange Knowles, and Rooney and Kate Mara. We think they deserved to win! While they've always been famous, they gained notice for their boho-chic style back in 2004, "We were called eccentric and eclectic...but we were just two California girls trying to dress for the New York winter." Congrats to Mary-Kate and Ashley! (yahoo)