Jennifer Lopez is one of the top beauty icons in Hollywood. Not only is she famous for making caramel-toned highlights coveted worldwide, but she's amassed a fragrance empire worthy of the record books. The fact that she recently celebrated her 46th birthday is hard to believe! Her body slides into a naked dress better than most 20-somethings. When it comes to beauty, her hair and makeup looks remain playful despite her age. Here's a look back at some of her most memorable red carpet moments.