Before forming Iron Maiden, the bass guitarist Steve Harris formed two bands named "Gypsy's Kiss" and "Smiler". Then in 1976, he formed the band, metal lord "Iron Maiden".

GYPSY'S KISS - Nov ´73 (Before Maiden)
Paul Sears- Drums
Bob Verschoyle - Vocals
Dave Smith - Guitars
Steve Harris - Bass
(Tim Wotsit - Guitars)

SMILER - Oct ´74 (Before Maiden)
Steve Harris - Bass
Dennis (Den) Wilcock -Vocals
Doug Sampson - Drums
Tony Clee - Guitars
Mick Clee - Guitars

IRON MAIDEN - May ´76
Dave Sullivan - Lead/Rhythm Guitars
Ron "Rebel" Matthews - Drums
Paul Day - Vocals
Terry Rance - Lead/Rhythm Guitars
Steve Harris - Bass

IRON MAIDEN - Nov ´76
Steve Harris - Bass
Dennis Wilcock - Vocals
Ron "Rebel" Matthews - Drums
Dave Murray - Guitars
Bob Sawyer (Bob Angelo) - Guitars

IRON MAIDEN - End of ´76
Steve Harris - Bass
Dennis Wilcock - Vocals
Ron "Rebel" Matthews - Drums
Dave Murray - Guitars

IRON MAIDEN - End of ´76
Steve Harris - Bass
Dennis Wilcock - Vocals
Ron "Rebel" Matthews - Drums
Dave Murray - Guitars

IRON MAIDEN - Spring ´77
Steve Harris - Bass
Dennis Wilcock - Vocals
Barry Graham - Drums
Terry Wapram - Guitars
Tony Moore - Keyboard

IRON MAIDEN - mid ´77
Steve Harris - Bass
Barry Graham - Drums
Dennis Wilcock - Vocals
Dave Murray - Guitars

IRON MAIDEN - mid ´77
Steve Harris - Bass
Dave Murray - Guitars
Doug Sampson - Drums
Paul Di´anno - Vocals

IRON MAIDEN - early ´79
Steve Harris - Bass
Dave Murray - Guitars
Paul Cairns - Guitar
Doug Sampson - Drums
Paul Di´anno - Vocals

IRON MAIDEN - Oct ´79
Steve Harris - Bass
Dave Murray - Guitars
Paul Todd - Guitars
Doug Sampson - Drums
Paul Di´anno - Vocals

IRON MAIDEN - end ´79/early ´80
Steve Harris - Bass
Dave Murray - Guitars
Tony Parsons - Guitars
Doug Sampson - Drums
Paul Di´anno - Vocals

IRON MAIDEN - Jan ´80
Steve Harris - Bass
Dave Murray - Guitars
Dennis Stratton - Guitars
Clive Burr - Drums
Paul Di´anno - Vocals

IRON MAIDEN - Oct ´80
Steve Harris - Bass
Dave Murray - Guitars
Adrian Smith - Guitars
Clive Burr - Drums
Paul Di´anno

IRON MAIDEN - Sep ´81
Steve Harris - Bass
Dave Murray - Guitars
Adrian Smith - Guitars
Clive Burr - Drums
Bruce Dickinson - Vocals

IRON MAIDEN - Dec ´82
Steve Harris - Bass
Adrian Smith - Guitars
Dave Murray - Guitars
Bruce Dickinson - Vocals
Nicko Mc.Brain - Drums

IRON MAIDEN - Jan ´90
Steve Harris - Bass
Dave Murray - Guitars
Janick Gers - Guitars
Nicko Mc.Brain - Drums
Bruce Dickinson - Vocals

IRON MAIDEN - Sep ´93
Steve Harris - Bass
Janick Gers - Guitars
Dave Murray - Guitars
Nicko Mc.Brain - Drums

IRON MAIDEN - Jan ´94
Steve Harris - Bass
Janick Gers - Guitars
Dave Murray - Guitars
Nicko Mc.Brain - Drums
Blaze Bayley - Vocals

IRON MAIDEN - Jan ´99
Steve Harris - Bass
Janick Gers - Guitars
Dave Murray - Guitars
Adrian Smith - Guitars
Nicko Mc.Brain - Drums
Bruce Dickinson - Vocals