Chinn + Chapman = Chinnichap40 years ago, in January 1973, The Sweet had their one and only # 1 single with Block Buster! (Their screamer, not mine). In the charts at the same time, and on the same record label - RCA, was David Bowie's Jean Genie: which had an identical guitar riff.
'It's actually an old blues riff' Andy Scott, Sweet's guitarist, told me many years later when I interviewed him for the paper. 'Mike Chapman, our producer, used to come and see us live and at that time we would play I'm A Man by The Yardbirds and segue into FBI by The Shadows. Mike went away and (with Nicky Chinn, above right) wrote Block Buster! and the two songs became one.'