John “JD” DeServio, is the current bass guitarist in Black Label Society since 2005. DeServio was also a member of Pride & Glory, Wylde’s southern rock trio for a short time in December 1994, and was also Black Label Society’s original bass guitarist, playing on the tour supporting their debut album, Sonic Brew. He also performed on Michael Romeo’s solo album War of the Worlds, Pt. 1 in 2018. He endorses Schecter bass guitars and GHS strings. John has his own band called Cycle of Pain whose debut album was released in April 2009 on Reform Records.