Muhammad Ali has been played on NTS in shows including House Call, featured first on 14 January 2014. Songs played include I'm The Greatest (Ali's Bicentennial Freedom Song).

Muhammad Ali (/ɑːˈliː/; born Cassius Marcellus Clay Jr.; January 17, 1942 – June 3, 2016) was an American professional boxer and activist. Nicknamed "the Greatest", he is regarded as one of the most significant sports figures of the 20th century and is often regarded as the greatest heavyweight boxer of all time. He held the Ring magazine heavyweight title from 1964 to 1970. He was the undisputed champion from 1974 to 1978 and the WBA and Ring…