Proven by Natalie Portman in Lanvin, you can never go wrong with basic black. This is a safe, smart choice for an office holiday party. It doesn't reveal too much, except your smashing sense of style.
BUY A DRESS LIKE NATALIE'SSleeveless dance dress, Tadashi, $350; bloomingdales.com.NEW: Find the perfect party dress and more! Shop your favorite stores and brands in one quick click.Read MoreLess