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
Joe Frazier vs. George Foreman defending that title four times before knocking out Jimmy Ellis to claim the vacant WBA and WBC titles in 1970 that had been stripped from Muhammad Ali. Frazier's most notable defense would come against Ali himself in what was billed as the "Fight of the Century." After defeating Ali by unanimous decision, Frazier captured "The Ring" heavyweight title and became recognized as the lineal champion. In between his first Ali fight and his bout with Foreman, Frazier successfully defended his title twice against fringe contenders Terry Daniels and Ron Stander. Following his knockout of Stander, Ali attempted to gain a