Sia's White Hair Is Out of Control on 'Interview' April 2015 Cover

Sia shows off her huge white hair on the cover of Interview magazine’s April 2015 issue, which is out on newsstands now! Here’s what the 39-year-old singer had to share: On her blonde bob: "I had the idea that, well, if Amy Winehouse had been the bouffant, maybe I was the blond bob. I wasn't