"Lauren is a Laguna Beach girl who lives in Hollywood," says Lauren Conrad's colorist Kaz Amor of Warren-Tricomi Los Angeles, who gives the Hills star her signature sun-kissed highlights. But even if you grew up on the beach, there's no need to risk getting a burnt scalp. Follow Lauren's lead and style your hair into a protective updo to avoid frying your head. "Don't do a straight part," Kaz explains. "Use your fingers to separate and then pull it back." Or just keep your regular style and "direct a spray-on sunscreen only at your roots."