Simon Posford is one of the most recognized and respected electronica artists. Based in The United Kingdom, Simon Posford has been doing electronic music since the 1990s, using a handful of pseudonyms, most notably Hallucinogen. He has been involved in at least twenty different groups.

Simon Posford has mainly set his roots in the psychedelic trance genre. In 1995 the album Twisted was released, for which he received much praise. Apart from the psychedelic music, he has made a number of ambient collaborations with artists like Raja Ram; Shpongle being the most notorious. Simon is co-owner of Twisted Records.