"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 is postponing his shows over the next four months so he can recover from surgery. New dates have been announced for most of the concerts.

Billy Joel is postponing his tour for four months after surgery over an unspecified medical condition, the Rock & Roll Hall of Fame artist announced Tuesday morning. “While I regret postponing any shows,