Gregg Diamond (May 4, 1949 - March 14, 1999[1]) was a pianist, drummer, songwriter, and producer who was active in the jazz and disco music scenes of the 1970s.
Diamond wrote the song "Hot Butterfly," which was released in 1978 under one of his group's names, Bionic Boogie, with Luther Vandross providing lead vocals. The song was later covered by David Lasley and Chaka Khan. His other popular songs included "Risky Changes" (released by Bionic Boogie in 1977)...

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