Paul Robeson, the actor, singer and civil rights legend, is just the kind of role model we need todayIt's some career change, I say to Tayo Aluko. Certainly he wasn't expecting things to turn out this way. One minute he was singing in his garden, the next he was catapulted in a new direction. "Somebody said I sounded like Paul Robeson. I said, Paul who? But I was fascinated. I went and found a biography in December …