Aging Badly: Kate Moss
You don't need us to tell you that smoking wreaks havoc on your skin, hair, and nails, but Kate Moss, 38, is living proof. The supermodel turned actress doesn't hide her nasty habit. In fact, she lit up on the catwalk at Paris Fashion Week 2011, despite anti-smoking signs. She can still rock the red carpet, but if she keeps puffing, we see wrinkles and other more serious health woes in her future.