Kirsty Young's castaway is the First Minister of Scotland, Alex Salmond.

He has spent his political life campaigning for Scottish independence. As a schoolboy he stood in classroom elections - back then, he won on the canny ticket of half-days for all and replacing the school milk with ice-cream.

He was a child when he realised he had a knack for public performance - he was a boy soprano who seemed to have a promising career ahead of him. He says: "If you can sing in front of thousands of people when you're ten or eleven then being Scottish First Minister is nothing in comparison."

Record: Joe Hill sung by Paul Robeson

Producer: Leanne Buckle.