Roots of Chuck Jackson

Ashford & Simpson were an American husband-and-wife songwriting, production and recording duo composed of Nickolas Ashford and Valerie Simpson.

Freddie Scott was an American soul singer and songwriter. His biggest hits were "Hey, Girl", a top ten US pop hit in 1963, and "Are You Lonely for Me", a No. 1 hit on the R&B chart in early 1967.

Christophe Kenner was an American, New Orleans–based R&B singer and songwriter, best known for two hit singles in the early 1960s, "I Like It Like That" and "Land of 1000 Dances", which became staples in the repertoires of many other musicians.