Billy Joel announced that he has canceled all of his scheduled concerts, including Pittsburgh, after being diagnosed with a brain disorder. Joel was scheduled to perform at Acrisure Stadium with Rod Stewart on July 5th. According to a post on his Facebook page, he has been diagnosed with Normal Pressure Hydrocephalus, which has gotten worse with recent performances. It has led to problems with his hearing, vision and balance. Joel is now undergoing physical therapy and has been advised not to perform while he’s recovering. (Photo: AP)