Hallucinogen is the stage name of Simon Posford, an electronic musician specializing in Goa trance music from England. His early work is as an engineer on the T.I.P. Records(Raja Ram) and Dragonfly Records(Youth). His first album, Twisted, was one of the most widely influential electronic music recordings which helped to define the psychedelic trance genre. The follow-up album, The Lone Deranger, only cemented his influence. From then on, Posford ventured into numerous collaborations with other artists.