The rock star and fashion icon owns L.A.M.B. and its offshoot line, Harajuku Lovers. The brand produces women's wear, handbags, shoes and fragrances and children's clothing based on the No Doubt front woman's personal style and aesthetic. "L.A.M.B. is something that can be lasting and something I can continue to do in the future with a family," Gwen says on the brand's website. If Gwen were our boss, we'd learn more about fashion in a year than from a lifetime of reading fashion mags.