The famous Rumble in the Jungle was a fight between boxers Muhammad Ali and George Forman — that took place in Zaire, now Democratic Republic of Congo — in 1974. To help promote the match, organizers staged a three-day festival featuring headlining African and African American musicians. Decades later, some of the music was released in a collection called Zaire 74.  Host Marco Werman spoke to South African trumpeter Hugh Masekela and American record producer Stewart Levine when the CD came out in 2017.