A singular songsmith - As he releases a 'winter album', the former frontman of The Police talks about Belfast, playing with Stevie Wonder, making olive oil - and seeing ghosts... Sting wants my autograph. "Come on, just sign your name for me," he says shoving an expensive-looking pen my way. I tell him I don't usually do this sort of thing. "Just put a dedication," he insists. For reasons I still can't fathom, I scrawl "To Sting, from Brian XXX"...