Stars' New Year's Parties!

Toast 2010 with Christina Aguilera, Nicole & Joel, Lauren Conrad and more Hollywood dazzlers

  • KEEPS GETTIN' BETTER photo | Christina Aguilera

Credit: Denise Truscello/WireImage

Updated: Friday Jan 01, 2010 | 03:00 PM EST

KEEPS GETTIN' BETTER

Happy New Year! Christina Aguilera welcomes 2010 with open arms at Tao nightclub at Las Vegas's Venetian hotel, where she hosted and performed. Her resolution? "To continue having the best life ever."