Jessie J has revealed that she has undergone surgery this week but reassured fans that she will be fine. The Flashlight singer took to Instagram to post a video for her 3.4m followers, which showed her in a hospital gown and included a soundtrack from REM's Everybody Hurts. She accompanied the video with a lengthy statement, in which she confirmed that she had undergone a surgical procedure but would not be revealing the details of the operation.

A video posted by Jessie J (@isthatjessiej) on Jun 22, 2015 at 11:52pm PDT

"On fleek to on bleek real quick! I'm going to be offline for a few days and I wanted to show you why. I don't often share personal stuff (especially about my health) anymore. I just get on with it secretly but I wanted to share with you before someone else might and it gets twisted and exaggerated into something different or worse. Meh. ? "Just know I am ok as I say in the video on the right. I had an operation yesterday so need to rest. I won't be saying what for so PLEASE don't keep asking me or harassing my close ones on here or anywhere for information. It’s personal and I know you can respect that. I just wanted to explain to my fans why I may go AWOL for a minute. Love, prayers and well wishes is all I need ❤️" The star has been vocal about her ongoing health battles and previously revealed that she suffers from Wolff-Parkinson-White syn­­drome, which causes her to experience a fast, irregular heartbeat and shortness of breath. However, she has reassured fans that neither her heart or voice have been affected by this week's surgery. "My heart and voice are FINE. I want to take a moment to send a virtual hug and kiss out to anyone in pain or suffering at the moment. In hospital or at home. "There is always someone worse off than us and in moments like this I pray for you all. Hospitals have been my secret second home my whole life and they never get nice to be in. But they can inspire a great song. Trying to see the positive in everything ☺ Night gown could be good for the Voice live shows look too right? No? Too Much? Peace out for a minute people ? As Arni said on Graham Norton last night | "I'll be back" ?"