Porcupine Tree are an English
rock band formed by musician
Steven Wilson in 1987. The band began essentially as a solo project for Wilson, who created all of the band's music. However, by 1993, Wilson desired to work in a band environment, and so brought on frequent collaborators
Richard Barbieri on
keyboards,
Colin Edwin on
bass and
Chris Maitland on drums as permanent band members. With Wilson still in charge of
guitar and
lead vocals, this would remain the lineup until 2001, when the band recruited
Gavin Harrison to replace Maitland on drums.