Bang your gong, call and response human screams at the 4 min mark, nearly a couple decades before Andy Hildebrand (worth 20 mil) unveiled Autotune;
"Originally, Auto-Tune was designed to discreetly correct imprecise intonations, in order to make music more expressive, with the original patent asserting that "When voices or instruments are out of tune, the emotional qualities of the performance are lost."
A band that should probably have had more success. Singer Gary Holton became famous in the UK as an actor in the TV series Auf Wiedersehen Pet. Sadly, he passed away in 1985, midway through filming the second series.