Celebrity Hairstyles: ASHLEY OLSEN'S BEACHY WAVES

Even when this Olsen twin glams up the red carpet Old Hollywood-style, her always-casual do keeps her looking modern and cool. "The secret to scoring this soft, mussed-up effect is to use a texturizing spray that won't make your strands stiff," says Ashley's stylist, Mark Townsend, who swears by Sally Hershberger Shagg Spray, Let your hair air-dry completely, apply the texturizer to your palms, then scrunch it onto hair from midlength to ends. If you want a bit more wave, wrap 2- to 3-inch sections of hair around the barrel of a curling iron, alternating the direction to achieve that too-cool-to-care allure.