Britney Spears: Smiles After Split!

Britney Spears flashes a big grin on her face after leaving a shop on Monday afternoon (January 21) in Thousand Oaks, Calif.

The 31-year-old recently single singer spent the day doing some retail therapy. Hope she took advantage of some of the Martin Luther King, Jr. Day sales!

PHOTOS: Check out the latest pics of Britney Spears

Over the weekend, Britney showed a little bit of skin in a revealing dress while heading out for lunch at a Los Angeles hotel.

15+ pictures inside of Britney Spears leaving a store…