Kai Milla, the wife of legendary enteratainer Stevie Wonder, launched an eponymous contemporary women’s clothing line in 2005 and received acclaim from the fashion press, including a spread in Harper’s Bazaar and an appearance on “Oprah.” Kai’s height of popularity came after First Lady Michelle Obama wore a green silk sleeveless dress by the designer in February 2009, when Wonder was awarded a Gershwin Prize from the Library of Congress and gave a performance at the White House.