"Personally, I think that sexy is keeping yourself mysterious," Stevie Nicks told Rolling Stone in 2002. "I'm really an old-fashioned girl, and I think I'm totally sexy." For over 40 years, Ms. Nicks has embodied bohemian mystique, fronting Fleetwood Mac and pursuing a solo career in billowing sleeves, Victorian lace and dark, draping stage costumes. The singer joined Fleetwood Mac at the end of 1974 and quickly became known for her Grammy award-winning raspy vocals.