Here's a long black sequin prom dress that is simply gorgeous. With a trendy corset-style bodice, this sweetheart evening gown is fully sequined for a sparkly look at prom, fancy formals, and other black-tie events. The long sequin formal dress has a figure-flattering a-line skirt that opens in a side slit before ending at the floor with a dramatic sweep train. Offered in misses and extended sizes, this long black sequin prom dress is sure to wow the crowd at your very special celebration.