In the late '80s and for most of the '90s, Claudia Schiffer was that impossibly beautiful, curvy blonde with an uncanny likeness to Brigitte Bardot, gracing many a Guess ad campaign and magazine covers including Vogue, Elle, and even Playboy. Countless covers, editorials, and ad campaigns later, Claudia Schiffer is still impossibly beautiful, if more lithe than ever. On the red carpet in Cannes this Summer, Claudia dropped our jaws in a sexy lace gown; in a recent editorial for Vogue Deutsch, she looks like a playful, sexy 20-something. We're fascinated by Claudia's evolution, and in honor of her 41st birthday today, we're taking a look back at some of her most memorable photos. Click through to see each one.