In early 1960 Morris, Janie Bradford and Robert Bateman heard The Primettes audition for Motown Records.
He wrote and produced their first single "Tears of Sorrow" on Lu-Pine Records.
Morris produced and wrote for acts including Edwin Starr,[4] and Martha & the Vandellas, sometimes collaborating with songwriter Sylvia Moy.
[5] His songs were also recorded by The Originals, Smokey Robinson & the Miracles, The Marvelettes, Stevie Wonder[6] and others.
In 1995, Morris sued Berry Gordy Jr. and Motown for unpaid royalties.