Clive Coleman profiles Peter Gabriel. He came to fame - and fortune - as the extravagantly-dressed lead singer of Genesis, before launching a successful solo career. But Gabriel has pushed many other frontiers, notably helping to found the World Music festival WOMAD. He has also experimented with new technologies, brought elder statesmen together and campaigned for human rights. Clive hears from Archbishop Desmond Tutu, former Irish President Mary Robinson and Peter Gabriel's mother about what makes him tick.