Héctor Lavoe a guest singer with the Fania All-Stars for several shows. One of the group's notable performances took place in the Kinshasa province of the Zaire (modern day Democratic Republic of Congo) where the group performed as part of the activities promoting The Rumble in the Jungle, a boxing fight between Muhammad Ali and George Foreman for the heavyweight championships of the World Boxing Council and World Boxing Association. The Fania All Stars recorded several of their tracks during live concerts. Lavoe was part of the group when the All-Stars returned to Yankee Stadium in 1975, where the band recorded a
Hank Schwartz In 1972 Schwartz was invited by the Japanese television network ITV to advise the production crew and engineering staff for the global broadcast of the fight between Mac Foster and Muhammad Ali. By the time Ali fought Jerry Quarry and Oscar Bonevena, Video Techniques had hit its peak and was considered to be the leader in these new distribution technologies. In 1973, Schwartz traveled to Jamaica to televise the fight between George Foreman and Joe Frazier, which was the first sporting event ever broadcast on HBO. In 1974 Video Techniques acted as the promoter and producer of The Rumble in