In later life , he became important as a composer doing the scores of films like Cry Freedom and , at the 60th Annual Academy Awards in 1988 , he performed his nominated song '' Cry Freedom . '' Also , in 1988 , he performed at the Nelson Mandela 70th Birthday Tribute in Wembley Stadium . In 1991 , he returned to South Africa and , in 1997 , he composed the theme for their Olympic bid
Nelson Mandela 70th Birthday Tribute
Nelson Mandela 70th Birthday Tribute
Jonas Gwangwa