President and Executive Creative Director, J. Crew, 44
Lyons, who reportedly left her husband for another woman, is known for elevating the mass retailer from a humdrum shopping-mall staple into a trendsetting fashion powerhouse. Her careless-chic sense of style has become the brand’s new signature, creating ardent fans -- most notably Michelle Obama. In March, under Lyons’s direction, the company announced $15.1 million in profit, up three-fold from the previous year.