"I'd rather see somebody wearing too little makeup than too much," Kate Bosworth has said and it's no wonder. With her pale locks and heterochromic eyes—one blue, one hazel—the 21 star's striking enough to go without. Born in Los Angeles and raised in New England, the former equestrian has played everyone from a surfer girl to Superman's girl. But it's her clean all-American style that has landed her contracts with both Revlon and Calvin Klein Jeans. "The hair is always beautiful, the makeup, the nails—she's never overdone," Calvin Klein designer Francisco Costa has said. "There is this casualness about her." Sounds just right.

—Betony Toht

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