Britney's Back to Her Old Self

Britney Spears certainly hasn't been taking her impending divorce to Kevin Federline hard. Instead of sitting home crying, Britney's been partying in Vegas with Mario Lopez!

Britney - under disguise in a pink wig and large sunglasses - and her former (or is it current) manager Larry Rudolph, arrived in Vegas this week.

During the trip, Britney worked on tracks for her upcoming album, and played some blackjack...even winning $10,000 at the tables (that would be like me winning $5), and was later introduced to Mario Lopez. The two hit Moon Nightclub and partied all night. She looks good! This must be a pre-partying photo.