"Billy Joel's upcoming concert dates will be rescheduled due to a medical condition," the statement began. "The current tour will be postponed for four months to allow him to recover from recent surgery and to undergo physical therapy under the supervision of his doctors."

Billy Joel announced he will be postponing his tour for four months due to a "medical condition" on Tuesday. The legendary rock artist shared a statement to Instagram that he is recovering from a recent surgery and has to "undergo physical therapy under the supervision of his doctors.