US singer/songwriter/bass player/guitar player/trumpet player who is the son of trumpet player Charles Green and nephew of singer/choreographer Julius Green. Gregg's first solo project was "World Citizen", a neo soul/funk/dub/acid jazz release from 2010. "Blue Collar Soul" was a second release from 2012, followed by "Innercity Poetry" in 2013, and "Soulful Mathematics" in 2017. Gregg is currently working on his fifth studio album "Street Blues".