The X Factor mentor treats herself to Subway.
Britney Spears wears a Mickey and Minnie Mouse shirt while picking up some flowers in Calabasas, Calif.
The 30-year-old singer was later spotted in a pair of jeans and a Junk Food t-shirt while eating at a fast food joint.
Later that day, Britney reportedly went solo while checking into a hotel with three bags of luggage in tow.
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