Rise To Fame (1978–1981)

A chance meeting at the Red Lion pub in Leytonstone evolved into a successful audition for vocalist Paul Di'Anno. Steve Harris has stated, "There's sort of a quality in Paul's voice, a raspiness in his voice, or whatever you want to call it, that just gave it this great edge."

Iron Maiden had been playing for three years, but had never recorded any of their music. On New Year's Eve 1978, the band recorded a demo, The Soundhouse Tapes. Featuring only four songs, the band sold all five thousand copies within weeks. One track found on the demo, "Prowler", went to number one on Neal Kay's Heavy Metal Soundhouse charts in Sounds magazine. Their first appearance on an album was on the compilation Metal for Muthas (released on 15 February 1980) with two early versions of "Sanctuary" and "Wrathchild".

From late 1977 to 1978, Murray was the sole guitarist in the band until Paul Cairns joined in 1979. Shortly before going into the studio, Cairns left the band. Several other guitarists were hired temporarily until the band finally chose Dennis Stratton. Initially, the band wanted to hire Dave Murray's childhood friend Adrian Smith, but Smith was busy with his own band, Urchin. Drummer Doug Sampson was also replaced by Clive Burr (who was brought into the band by Stratton). In December 1979, the band landed a major record deal with EMI.
Iron Maiden's eponymous 1980 release, Iron Maiden, made number 4 in the UK Albums Chart in its first week of release, and the group became one of the leading proponents of the New Wave of British Heavy Metal movement. In addition to the title track, the album includes other early favourites such as "Running Free", "Transylvania", "Phantom of the Opera", and "Sanctuary" — which was not on the original UK release but made the U.S. release and subsequent re-releases. The band played a headline tour of the UK then went on to open for Kiss on their 1980 Unmasked Tour's European leg. Iron Maiden also supported Judas Priest on select dates. After the Kiss tour, Dennis Stratton was dismissed from the band as a result of creative and personal differences. Stratton was replaced by Adrian Smith in October 1980.

In 1981, Maiden released their second album, titled Killers. This new album contained many tracks that had been written prior to the release of the debut album, but were considered surplus. With songs already created well in advance during tour, only two new tracks were written for the album: "Prodigal Son" and "Murders in the Rue Morgue"^[ (the title was taken from the short story by Edgar Allan Poe).