Newsday: Why prom has Long Island teens shopping for their dresses early Mary Breen, a senior at Classical High School, exited the dressing room and twirled, gliding in a long white prom dress with blue and silver stones and a delicate flower print curling up the right ... New York Post: The 30 best cheap prom dresses to shop last-minute for under $200 The 30 best cheap prom dresses to shop last-minute for under $200 Business Insider: Photos show the evolution of prom dresses from the 1940s to today Photos show the evolution of prom dresses from the 1940s to today