Little black dresses come in all sorts of silhouettes and styles, and with the endless possibilities, you can never have enough. A new one to add to your collection is the French Connection Nix Nights black dress ($268) Julianne Hough wore with Gio Diev's blue and white raffi pumps to her SiriusXM appearance in NYC. What makes this LBD so special? Let's start with the asymmetrical hemline — notice the longer hem in the back, which makes it party in front, demure in back. The white piping along the sleeves and tail make the dress pop even more, and finally, its square neckline gives it a classic look that will never go out of style. Dress it down with sandals and a denim jacket during the day, then dress it up with heels and tons of jewels at night.