Jack Maness is an American singer-songwriter, guitarist, and keyboardist.Maness began his career singing and playing guitar on Sublime's "Rivers of Babylon", and later joining the Long Beach Dub Allstars as a keyboardist. He was a founding member of Dubcat and has recently released his debut solo album Simple Man featuring members of Dubcat, Slightly Stoopid,and motown bass legend Carol Kaye.