Delerium is a band from Vancouver, British Columbia, Canada, formed in 1987, originally as a side project of the influential industrial music act, Front Line Assembly. Throughout the band’s history, their musical style has encompassed a broad range, including dark ethereal ambient trance, voiceless industrial soundscapes, and electronic pop music.
Delerium has traditionally been a two-person project, but the only constant member throughout its history has been Bill Leeb. Leeb was a guest musician and early supporter of industrial dance pioneers Skinny Puppy, but after he left in 1986, he went on to create his own project, Front Line Assembly, with collaborator Michael Balch. Later, the two worked on the side project Delerium and released their first album, « Faces, Forms & Illusions » (1989).

Of Delerium's albums, « Karma » (1997) has garnered the most commercial success. Most listeners only know of Delerium from their work produced on the Nettwerk label, as they were relatively unknown in the pop-music scene before the release of « Semantic Spaces » (1994).
Delerium's commercial success has hinged largely on the single entitled "Silence" (1999), which featured vocals by Sarah McLachlan. In 2000, three years after the original release of source album « Karma », a number of remixes of "Silence", produced by DJs Sasha and Digweed, DJ Tiësto, Airscape, Fade and others, proliferated throughout dance clubs; the interest generated took the single to #3 on the UK charts and gained considerable radio airplay for the song.
Sarah Ann McLachlan (born January 28, 1968) is a Canadian musician, singer and songwriter. Known for her emotional ballads and mezzo-soprano vocal range, as of 2006, she has sold over 40 million albums worldwide. McLachlan's best-selling album to date is « Surfacing », for which she won two Grammy Awards (out of four nominations) and four Juno Awards.

Recently, end of 2010, on his radioshow A State of Trance, Armin van Buuren announced the official Top 3 of the Trance Top 1000, which pointed out that the Tiësto remix of 'Delerium feat. Sarah Mclachlan - Silence' is the most popular trance track of all time.

March 2011, Pool E Music is proud to announce a brand new Remix of « Silence » by David Esse & Antoine Clamaran !! A new progressive house remix of this famous track.
Be sure this new version will reach again top charts everywhere !!