Here's a long black tiered prom dress that is sure to wow the crowd. With a sheer corset-style waist, this long black evening gown offers a sexy vibe for prom, galas, and other red-carpet events. A pleated cowl neckline tops this long black evening gown, while the long a-line skirt flows in tiered ruffles down to the floor to finish the design. Fun, fancy, and feminine, this long black tiered prom dress is a unique style from Betsy and Adam.