In 1966, at the peak of tensions in Mississippi over civil rights, Whitsett introduced two new singers to his band, Tommy Tate[2] and Dorothy Moore, both black, and both later to achieve chart acclaim as solo artists.
Until disbanding the group in 1969, Whitsett wrote, produced, arranged, or played on numerous records for other artists, including The Vels, Peggy Scott & Jo Jo Benson, Huey "Piano" Smith & The Clowns, Bobby Marchan, Junior Parker, Paul Davis, Barbara Lynn, Sam Myers, Dorothy Moore and others.
Due to many personnel changes resulting from marriages and the military draft for the Vietnam War, Whitsett dissolved The Imperial Show Band.
At Chrysalis, then Chappell, Whitsett managed song catalogs that included works by David Bowie, Jethro Tull, The Chieftains, Irving Berlin, Cole Porter, Chuck Berry, George Gershwin, Rodgers and Hammerstein, etc.
Clients included EMI, Chappell, Gamble and Huff, Jobete, CBS Songs, Virgin, MCA, et al., as well as publishing companies owned by Paul McCartney, Michael Jackson and Elton John.
That same year, Whitsett founded LocoBop which started out as a digital only record label, but has since began to release physical CDs as well.