THE LOOK Top-curled short ‘do HOW-TO Apply volumizer to the roots and comb through the hair. Blow-dry hair with a medium-size round brush, says Sebastian Professional stylist Thomas Dunkin. When done, take a one-inch curling iron and roll sections back away from the face, holding the iron horizontally and gently pulling the iron down out of the curl. Secure with a coat of hairspray. INSIDER TRICK This look works best on hair like Rihanna’s, which is cut short with longer pieces on top.