Jessie J is getting her groove back after battling cancer.

Taking to her Instagram Story over the weekend, the “Price Tag” singer posed in a sleek black one-piece swimsuit while showing off her toned figure in a bathroom mirror.

“Post baby, Post cancer,” Jessie J, 37, captioned it. “This Aries mamma is starting to get her spicy back.”

The singer (real name: Jessica Cornish) revealed back in June that she had been diagnosed with early breast cancer and would be undergoing a mastectomy and reconstructive surgery.

Jessie J described herself as an “open book” while revealing the health news to her followers in an emotional Instagram video at the time.

“Cancer sucks in any form, but I’m holding on to the word ‘early,’” she said, noting that she would be having surgery after the June 15 S

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