Psychedelic rock band formed by Daevid Allen and Gilli Smyth in France in 1969. They are considered pioneers of psychedelic rock, and were associated with the Canterbury scene. The band went through a large number of changes in members. Following the departure of Allen the band continued with Steve Hillage as leader for a short while, and then in various incarnations as the more jazz-rock styled Pierre Moerlen's Gong.