By Jeff Jensen
Updated March 05, 2009 at 12:00 PM EST

Oscar-winner Robin Williams will have heart surgery to replace an aortic valve, CNN reports. The news comes after the 57-year-old actor-comedian was forced to suspend an 80-city tour of his one-man show, Weapons of Self-Destruction, after concerns over shortness of breath prompted him to check into a hospital. It’s not known yet when the surgery will take place. In a statement, Williams says: “I’m so touched by everyone’s support and well wishes…. This tour has been amazing fun and I can’t wait to get back out on the road after a little tune-up.”