MC Spears -- Britney Rocks Mic in Vegas

9/1/2007 10:40 AM PDT
Britney Spears hightailed it to Las Vegas last night to host the opening of LAX Nightclub at the Luxor Casino. Come on in, y'all!

The platinum-haired pop tart arrived on the red carpet wearing a cute, white baby doll dress -- and a wig that looked sewn into the seams of her hat!

Once inside, the host with the most fake hair grabbed the mic to much applause -- and gave a measly, two-sentence introduction. As DJ AM spun records in the 26,000 square foot, two-story party palace, Britney was onstage dancing her heart out -- from her seat.

Littering the VIP section were heiress Nicky Hilton, "That 70s Show" alum Wilmer Valderrama, and "Mindfreak" of the week, Criss Angel.