This beauty’s style has come a long way. When Nicole Richie, 26, first appeared in The Simple Life, her hair was a complicated mass of colors and textures that beauty pros agreed looked less than chic. Since then Richie’s hair has evolved-along with her look-from raw and edgy to sun-kissed and sassy. The long, thin ponytails have been replaced with more glamorous waves and most recently a layered bob that looks equally stylish worn wavy or straight. The change wins raves from N.Y.C. stylist Stephen Knoll: “The shorter layers flatter her features better than her long hair did, and the new beach-blond color makes her look fresh and healthy. She looks more modern—polished but still sexy." It's the perfect look for the actress-aspiring singer-author.