Shepherd was the singer on Wellwater Conspiracy's 1997 debut studio album, "Declaration of Conformity", but left the band in 1998. He has toured with Mark Lanegan and played bass on two of Lanegan's albums, "I'll Take Care of You" (1999), and "Field Songs" (2001). Shepherd and Cameron lent a hand with recording Tony Iommi's album "IOMMI" (2000). While they were members of Soundgarden they were part of the side-project band Hater, and in 2005 Shepherd released the band's long-delayed second album, "The 2nd".