The Dickinson and Smith-penned " Flight of Icarus" was the first Iron Maiden single to chart in the United States, reaching number eight on the Billboard Mainstream Rock chart. It was not until 1983's Piece of Mind that the songwriting process became a more varied and collaborative approach, with just four of its nine tracks being credited solely to Harris, two to Dickinson and Smith, one to Harris and Murray, one to Dickinson alone, and one to Harris, Dickinson, and Smith.
![another tomorrow iron maiden another tomorrow iron maiden](https://i.ytimg.com/vi/7Fz5TBg0-eY/hqdefault.jpg)
The Number of the Beast also spawned Iron Maiden's first UK Singles Chart top ten in the form of " Run to the Hills", which charted at number seven on its release. Bruce Dickinson replaced Di'Anno after the release of Killers, although he did not contribute any songwriting to The Number of the Beast, released in 1982, which featured three songs co-written by guitarist Adrian Smith, and one co-written by drummer Clive Burr (a B-side also co written by Burr was included in a 1990s re-release of the album). The 1981 follow-up, Killers, was written almost entirely by the bassist, with frontman Di'Anno contributing only to the title track, "Killers" (the North American bonus track " Twilight Zone" was credited to Harris and Murray). The band's first album, 1980's Iron Maiden, was written primarily by Harris, with vocalist Paul Di'Anno co-writing two tracks and guitarist Dave Murray contributing "Charlotte the Harlot". Iron Maiden are an English heavy metal band formed by bassist Steve Harris in 1975. The current lineup of Iron Maiden comprises Steve Harris, Dave Murray, Adrian Smith, Bruce Dickinson, Nicko McBrain, and Janick Gers.