Hallucinogen is the stage name of Simon Posford (born 1971), an electronic musician specializing in goa trance music from England. His early work was as an engineer on the T.I.P. (Raja Ram) and Dragonfly (Youth) labels. His first album, Twisted, was one of the most widely influential electronic music recordings of its time and helped to define the psychedelic trance genre. The follow-up album, The Lone Deranger, only cemented his influence.