 After the album 's release , Johnston became involved in the Sing Up campaign , appearing in schools around the country to encourage other young people to join choirs . In December 2008 , Johnston made a guest appearance at <unk> 's Christmas fair , and performed at a <unk> service in Bradford . Johnston was also invited to turn on the Carlisle Christmas lights and perform at the celebrations . Mike <unk> , of Carlisle City Council , described Johnston as " one of our local heroes " . 
