Selena Gomez has been on one sexy style streak lately while promoting her new movie Spring Breakers. Most recently, she slipped into a very short LBD by Emilio Pucci, complete with sequins, lace, and polka dots. Selena wore this sultry ensemble to stop by The Late Show With David Letterman, where she and David shared a laugh about her ex-boyfriend. Watch on for the scoop on Selena's look in today's Fashion Flash. On Allison McNamara: Nicole Miller dress, Luv AJ jewelry.