The singer proudly posted two photos showing off her new, post-baby body in Calvin Klein underwear Friday on Instagram.
“I feel so proud to say that 4 months after delivering a 9 lbs. 10 oz. baby, I can finally rock My Calvin’s! #mycalvins,” she captioned a snapshot of herself lying in bed in a black sweater, bra and underwear, her long hair falling over her shoulder and onto white sheets.