What do you do when you want to change your image? Call up Paris Hilton.

The newly single Britney Spears was spending time dancing, smoking, drinking and flirting in Vegas with her new gal-pal Hiltie. Things got so hot at Tryst at the Wynn, that the Britster was sans pants after a while, opting to show off her booty in fishnets.

Where was K-Fed? Better yet, where were her two sons?