Members:
Jan Akkerman (guitar, 1970-76)
Thijs van Leer (keyboards, flute, vocals, Hammond organ, 1969-78, 2002-present)
Bert Ruiter (bass, 1971-78)
Pierre van der Linden (drums, 1971-73, 2002-present)
Martin Dresden (bass, 1969-71)
Hans Cleuver (drums, 1969-71)
Cyril Havermans (bass, 1971)
Colin Allen (drums, 1973-75)
David Kemper (drums, 1975)
Philip Catherine (guitar, 1976-78)
Eef Albers (guitar, 1977-78)
Steve Smith (drums, 1977-78)
PJ Proby (vocals, 1977-78)
Bobby Jacobs (bass, 2002-present)
Jan Dumée (lead guitar, vocals, 2003-06)
Niels van der Steenhoven (lead guitar, 2006-present)

Associated Acts:
Jan Akkerman & Thijs Van Leer
Ramses Shaffy

Genres:
Progressive Rock
Hard Rock

Formed: In 1969 in Amsterdam, Netherlands

Debut Album: Focus Plays Focus (1970)