SING YOUR SONG is an inspiring story of performance and protest, from a superstar singer and actor who was on the front lines of practically every progressive political battle in modern memory. Along the way he became close to some of the most talented and influential people of the latter half of the 20th Century – from fellow students at his acting class Tony Curtis, Marlon Brando, Sidney Poitier and Walter Matthau, to Eleanor Roosevelt, James Baldwin, Bob Dylan, Fidel Castro, Miriam Makeba and Nelson Mandela. But it was his intimate relationship with civil rights hero Dr Martin Luther King that was to be the most significant of his long political life.