[6] While at Mediasound, Diamond worked with a wide range of artists including Gloria Gaynor, Martha Reeves (Martha & the Vandellas), Kool and the Gang, Frank Sinatra, Glen Campbell, Etta James, Barry Manilow, and Merle Haggard, as well as recording some of the top studio musicians of the era, such as Steve Gadd, Tony Levin, Bernard Purdie, Mick Ronson and Paul Shaffer.
The success of "More, More, More" led to the formation of the creative nucleus known as the World Radio Band consisting of Gregg, Godfrey, Steve Love and Jim Gregory.
This team wrote, produced and arranged many dance/pop artists including Bionic Boogie, Hot Butterfly/Luther Vandross, Gloria Gaynor, Star Cruiser and George McCrae who were instrumental in creating the disco sound.
His collaboration with Rob Hardin led to the band Dance in Reverse, signed by Atlantic Records, which brought together many acclaimed players of the era including Sammy Merendino on drums, Mars Williams on saxophone and Steve Stevens on guitar.
[9][10][11] In 2015, Diamond co-produced David Bronson's album Questions with guest singers Robin Clark, Gordon Grody and Carlos Alomar.