Here's a metallic sequin prom dress that's as dazzling as it is sexy. Featuring both spaghetti straps and draped pleated off-the-shoulder straps, this cowl-neck prom dress has allure down to a fine art. While the tulle fabric is sequined from neckline to hem, silver beaded fabric peeks out above the cowl detail of this sheer corset prom dress for an ultra sultry effect. Adding a final head-turning detail to this metallic sequin prom dress, a thigh-high slit cuts into the side of the ruched skirt.