(NEXSTAR/KTLA) – English pop singer Jessie J, known for songs including “Price Tag” and “Bang Bang,” has been diagnosed with breast cancer, she revealed in a video post to her 13.9 million Instagram followers on Tuesday night.

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The singer, 37, added that she’s scheduled to undergo surgery after an appearance at a London music festival on June 15, at which time she plans to “disappear for a bit.”

Jessie J, whose real name is Jessica Ellen Cornish, told her followers on Tuesday that she had been diagnose

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