Lady Gaga disappointed thousands of her “Little Monsters” yesterday when the superstar announced her Born This Way Ball tour will be postponed because of an injury.

The Poker Face singer put on a brave face for her fans, breaking the news in a long, heartfelt status update on her Facebook page on Tuesday

“There’s an unfortunate announcement coming out right now, concerning myself and the Born This Way Ball,” she wrote. “I’m so sorry. I barely know what to say. I’ve been hiding a show injury and chronic pain for some time now, over the past month it has worsened.”

The singer, who is currently being sued by her ex-assistant Jennifer O’Neill, posted a link to the Live Nation website with more details on why the tour was being delayed. The release stated Gaga is suffering from synovitis or severe inflammation of joints, and was ordered by her doctor to reschedule the concerts for Chicago, Illinois, Detroit, Michigan and in Hamilton, Ontario. The website advised fans to hold on to their tickets and wait for an announcement about the new dates.

The 26-year-old singer said that her injury is so bad she was unable to walk after a recent concert.

“I’ve been praying it would heal. I hid it from my staff, I didn’t want to disappoint my amazing fans,” she wrote. “However after last night’s performance I could not walk and still can’t.“

Gaga expressed her regret to fans in the affected cities for having to skip the concerts in order to take care of her injury.

“To the fans in Chicago, Detroit & Hamilton I hope that you can forgive me, as it is nearly impossible for me to forgive myself. I’m devastated & sad. It will hopefully heal as soon as possible, I hate this. I hate this so much. I love you and I’m sorry.”

The next concert is scheduled for Feb 19 in Philadelphia. Gaga’s album Born This Way was released in 2011 and fans are eager to hear new music from the pop star. Her next album, ARTPOP, is scheduled for a September 2013 release date after being pushed back from March 2013.

Tags: Lady Gaga