Lady Gaga has revealed that she is undergoing a hip operation.

The singer recently cancelled the remaining dates of her North American Born This Way Ball tour after a joint complaint was found to be more severe than first thought.

A statement released by promoters Live Nation confirmed that Gaga would have to undergo hip surgery to fix the problem. Gaga suffers from a labral tear on her right hip.

Taking to Twitter today (February 20) at roughly 2.30pm UK time, the 'Marry The Night' singer revealed that she was about to head into the operating theatre. She said:

"Going in for surgery now. Thank you so much for sending me love and support. I will be dreaming of you."

Gaga's North American tour was due to finish up in Tulsa on March 20 but she could not fulfil the dates.