Lady GaGa has announced the immediate postponement of her Born This Way Ball tour due to chronic pain.

The 26-year-old popstar broke the news on Twitter last night (Feb12) citing a case of synovitis, which is a severe inflamation of the joints, as her reason for cancelling two shows in Chicago as well as her gigs in Detroit and Hamilton.

Lady GaGa wrote: "Im so sorry. I barely know what to say.

"I've been hiding a show injury and chronic pain for sometime now, over the past month it has worsened. I've been praying it would heal??.

"I hid it from my staff, I didn't want to disappoint my amazing fans. However after last nights performance I could not walk and still can't.

"To the fans in Chicago Detroit & Hamilton I hope you can forgive me, as it is nearly impossible for me to forgive myself. Im devasted & sad.

"It will hopefully heal as soon as possible, I hate this. I hate this so much. I love you and Im sorry."