Heidi Montag and Spencer Pratt: New Year's Lovers

They’re no strangers to the glitzy Las Vegas party scene, and last night Heidi Montag and Spencer Pratt were living it up as they played hosts at a Las Vegas New Year’s Eve party.

The “Hills” lovers looked to be having a marvelous time at their shindig, held at Christian Audigier The Nightclub at the Treasure Island Hotel and Casino.

And both of these bleached blonde babes were looking snazzy, with Heidi opting for a sexy little black dress, while Spencer sported a grey suit.

When the clock struck midnight and 2009 began, the peroxide pair revved up the crowd with a champagne toast, doing their usual PDA smooch for everyone to see.

Earlier in the evening, Heidi and Spencer dropped by PURE nightclub to check out what fellow newlyweds Ashlee Simpson and Pete Wentz were up to.

Gossip Girls

Enjoy the pictures of Heidi Montag and Spencer Pratt out celebrating New Year's Eve in Vegas (December 31).