Here's a strapless long black prom dress for the girl who loves a tuxedo look. From Betsy & Adam, this long black formal dress has gleaming lapels at the v-neckline that gives it a tuxedo look for fancy formals, weddings, and even prom. The strapless long black evening gown has a long skirt that smooths over the hips before a side slit adds a look of allure with every step you take. A refined choice for your formal event, this strapless long black prom dress is ready to wow the crowd!