While Mary Kate & Ashley Olsen have long been household names, their design sensibilities are less far-reaching, but if you heard about that $39,000 alligator backpack, you've heard of their line The Row. Many celebrities attempt to launch careers in fashion design, but none have been as successful as the former child stars-turned-style icons. Established in 2007, The Row offers subtle über-luxury with sensuous fabrics in effortless silhouettes. They straddle the line between classic and contemporary by incorporating a sense of sleek minimalism alongside shapes that give a wink to the avant-garde. Given that the twins beat out Marc Jacobs and the Proenza Schouler boys for the award, this is no small feat.