A Britain’s Got Talent singer has thrown his support behind youth clubs at risk of closure. Harrison Pettman, from Gravesend, works part time at a club in his hometown and said they are a vital service for young people. It comes as funding cuts will see the end of Kent County Council (KCC) subsidies for youth clubs and other activities currently commissioned by the authority but run by outside organisations. “I was devastated when I heard,” Mr Pettman said. “My heart was broken. It’s so sad that young people are not going to have the opportunities that we were given.” The 23-year-old said he s…