Numerous celebrities have shared heartfelt tributes to late TV presenter Paul O'Grady after it was announced he'd sadly passed away on 28 March, with Susan Boyle now joining mourners in sharing memories.The singer, 61, took to Instagram, where she shared a pair of photos of herself and her late friend. She penned the heartbreaking caption: "Paul, you were one in a million, kind, funny, and a great friend. "When I saw you last week in Edinburgh, never would I have thought this was goodbye.