Frank Zappa chose to produce Grand Funk Railroad’s 1976 album Good Singin’, Good Playin’ after setting aside his poor impression of the band and assessing them directly. The collaboration mattered because it brought an avant-garde, technically demanding musician together with a commercially successful but critically dismissed hard-rock group, resulting in a more polished record during a difficult period for Grand Funk.

Zappa said he had heard the group were “sub-morons and unmusical”, but found their material and approach more promising after meeting them, listening to their albums and observing rehearsals. Grand Funk, formed in 1969, had enjoyed major US success but faced a downturn by the mid-1970s; the album became their final studio release before their initial split in 1977. It included a cover of The Beatles’ ‘Gimme Some Lovin’’ and reflected Zappa’s belief that press reputations could be misleading.