Singer Neil Diamond says he’s been diagnosed with Parkinson’s disease. The 76-year-old announced on his website that the diagnosis is forcing him to retire from touring, as the onset of the disease is making traveling and performing on a large scale difficult. Diamond says he plans to remain active in writing and recording music. He says it’s been an honor to bring his shows to the public for the past 50 years. Diamond is also cancelling his upcoming Australian and New Zealand tour dates.