Younger than her fraternal twin Ashley by two minutes, Mary-Kate is often considered the edgier Olsen. While her sister is now fully focused on their multiple fashion lines, including the critically acclaimed luxury label The Row, Mary-Kate has continued her solo acting career on top of her design work. Known for their love of black leather, floor-sweeping hemlines, and baggy layers, the sisters loosely coordinate their outfits for public appearances, but Mary-Kate often takes the more provocative route, favoring plunging necklines and thigh-high slits. She usually sticks to clothes by The Row, occasionally mixing in other labels like Dior, Alaïa, and Chanel. Enjoy a look back at her fashion evolution (and brunette moments) in our slideshow.