John DeServio

John "JD" DeServio is an American musician who has been the bassist of heavy metal band Black Label Society since 2005. He was also a member of Pride & Glory, a southern rock trio, for a short time in December 1994, and was Black Label Society's original bassist, playing on the tour supporting their debut album. He is endorsed by Samson, Hartke, Schecter, Monster, Korg, and Coffin Cases.