December's here, which means it's officially time to get in the spirit of the season. Though you might be busy figuring out presents and hauling out the decorations, there's another all-important factor you need to start thinking about, too: what you plan to wear all those fancy soirées. As the best holiday party dresses are officially hitting the stores, there's a whole sea of cocktail attire in shimmery golds and silvers, midnight blues, deep reds, and dark greens to start exploring.

If your party outfit game could use a refresher this year, then you'll want to lock down these dreamy holiday dresses that are just arriving in stores. Since it's still early, you still have plenty of time to get your hands on one of the season's prettiest looks before they sell out, or start getting yours shipped before those parties start happening. Not only do the gorgeous seasonal shades in these dresses make for some lovely, ethereal winter looks, but they'll provide a killer complement to your shimmery eye shadow. To make your holiday planning easier, here are 11 of the best holiday party dresses that are out so far. After all, 'tis always the season for a new look.