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Looks like Britney Spears has been hard at work in the studio and on her body.
The 34-year-old pop star flaunted her enviable abs in a sexy selfie on Monday, showing off her super trim figure. Donning a cropped sweater and low-waist pajama pants, Spears made it clear she hasn't been overindulging during the holidays.
"Long day recording...now it's facial time!" Spears wrote.