Iron Maiden's only constant member since their inception was credited for a song on what album?
Steve Harris (musician) Stephen Percy "Steve" Harris (born 12 March 1956) is an English musician and songwriter, known as the bassist, occasional keyboardist, backing vocalist, primary songwriter and founder of the British heavy metal band Iron Maiden. He has been the band's only constant member since their inception in 1975 and, along with guitarist Dave Murray, to have appeared on all of their albums.
Nicko McBrain Michael Henry "Nicko" McBrain (born 5 June 1952) is an English musician, best known as the drummer of the British heavy metal band Iron Maiden, which he joined in 1982. Having played in small pub bands from the age of 14, upon leaving school McBrain paid his bills with session work before he joined a variety of artists, such as Streetwalkers, Pat Travers, and the French political band, Trust. He joined Iron Maiden in time to debut on their fourth album, "Piece of Mind" (1983), and has remained with them since, contributing to a total of thirteen studio releases.