Between Pepper Keenan and Harry Wayne Casey, who has worked with more artists?
Pepper Keenan:  He joined Corrosion of Conformity in 1989, but did not become the lead singer until the recording of "Deliverance" in 1994. Pepper Keenan:  In 1991 he formed Down with Phil Anselmo of Pantera, Jimmy Bower of Eyehategod, and Kirk Windstein and Todd Strange of Crowbar.
i don't know