3/10
Ross Kirton/eyevine/ZUMAPress.com
With the 2006 release of her new album Back to Black, Amy debuted the look we've all come to know so well—the beehive, the tats, the retro clothes. The album and its leading single, "Rehab," immediately climbed the U.K. charts. Of course, solid music with a unique-looking artist meant it was time to take the act to the U.S.