One-Shoulder Long Sequin Prom Dress: Ladivine CD980Turn up the heat in this one shoulder long sequin prom dress that is as sparkly as it is curve hugging. Fully sequined from the asymmetrical neckline to the hem, this long evening gown has one shimmering strap that drapes over one shoulder for a romantic look at prom, galas, and other black tie events. Offered in misses and some plus sizes, this long sequin evening gown smooths over the curves before the mermaid skirt ends in a short train.