Question: Who is the lead songwriter of an English Heavy Meal Band  who sang "Bring Your Daughter...to the Slaughter"?

Context articles: Iron Maiden
Postprandial dip
A Deeper Kind of Slumber
Biliary colic
List of Bruce Dickinson band members
Bring Your Daughter... to the Slaughter
Animals (Pink Floyd album)
Bringer of Pain
Nightwish
Dive! Dive! Live!

Iron Maiden are an English heavy metal band formed in Leyton, East London, in 1975 by bassist and primary songwriter Steve Harris.
 The band's discography has grown to thirty-eight albums, including sixteen studio albums, eleven live albums, four EPs, and seven compilations.
In medicine and specifically endocrinology, postprandial dip is a term used to refer to mild hypoglycemia occurring after ingestion of a heavy meal.
A Deeper Kind of Slumber is the 1997 Century Media Records release by Swedish band Tiamat.
 Featuring female background vocals by Birgit Zacher (Moonspell, Angel Dust) and experimentation with a variety of influences, the album marked the group's first complete withdrawal from both death metal and conventional heavy metal, following their 1994 release, "Wildhoney".
 It was also the first production after their relocation to Germany, and was written almost entirely by founder/lead songwriter Johan Edlund.
 Much of the music had reflected on Edlund's personal relationship with drugs, creative differences within the band as well as an interpersonal relationship.
Biliary colic, also known as a gallbladder attack or gallstone attack, is when pain occurs due to a gallstone temporarily blocking the bile duct.
 Typically, the pain is in the right upper part of the abdomen, and it can radiate to the shoulder.
 Pain usually lasts from one to a few hours.
 Often, it occurs after eating a heavy meal, or during the night.
 Repeated attacks are common.
Bruce Dickinson is a heavy metal singer, whose career has spanned more than three decades.
 In early 1989, during his first tenure in Iron Maiden, Zomba asked Dickinson to contribute a track for the film "", providing a budget, a studio, and a producer, Chris Tsangarides.
 Dickinson took up the opportunity and called an old friend of his, former Gillan guitarist Janick Gers.
 Shortly after meeting, they had "Bring Your Daughter to the Slaughter" ready for the studio, which was recorded with the assistance of bassist Andy Carr and drummer Fabio del Rio.
 Impressed with the results, Zomba convinced Dickinson to record a full album using the same line-up, leading to 1990's "Tattooed Millionaire".
 A supporting tour followed, for which an unavailable Del Rio was replaced by drummer Dickie Fliszar.
"Bring Your Daughter... to the Slaughter" is the second single from the 1990 Iron Maiden album "No Prayer for the Dying".
Animals is the tenth studio album by the English rock band Pink Floyd, released on 23 January 1977 by Harvest Records in the United Kingdom and by Columbia Records in the United States.
 It is a concept album that provides a scathing critique of the social-political conditions of late-1970s Britain, and presents a marked change in musical style from their earlier work.
 "Animals" was recorded at the band's studio, Britannia Row, in London, but its production was punctuated by the early signs of discord that three years later would culminate in keyboardist Richard Wright leaving the band.
 The album's cover image, a pig floating between two chimneys of the Battersea Power Station, was conceived by the band's bassist and lead songwriter Roger Waters, and was designed by long-time collaborator Storm Thorgerson of Hipgnosis.
Bringer of Pain is the fourth full-length album by the heavy metal band Battle Beast, released on February 17 2017.
 It is the first album without backing vocalist, guitarist, and lead songwriter Anton Kabanen.
Nightwish is a symphonic metal band from Kitee, Finland.
 The band was formed in 1996 by lead songwriter and keyboardist Tuomas Holopainen, guitarist Emppu Vuorinen, and former lead singer Tarja Turunen.
 The band soon picked up drummer Jukka Nevalainen, and then bassist Sami Vänskä after the release of their debut album, "Angels Fall First" (1997).
 In 2001, Vänskä was replaced by Marco Hietala, who also took over the male vocalist role previously filled by Holopainen or guest singers.
Dive!
 Dive!
 Live!
 is the first live video recorded by heavy metal singer Bruce Dickinson.
 It was filmed at the Wolf & Rismiller's Reseda Country Club on Sherman Way, Reseda, California, on 14 August 1990, while finishing the "Tattooed Millionaire" US tour leg.
 The video was produced by Paul Flattery and directed by Jim Yukich—who also worked on Iron Maiden's "Live After Death"—and the backing band was the same as on "Tattooed Millionaire", save drummer Dickie Fliszar, who replaced Fabio del Rio to perform during the tour.
 The set-list consisted practically of all the songs from the "Tattooed Millionaire" sessions, except for "Darkness Be My Friend" from "All The Young Dudes" single.
 It included "Bring Your Daughter... to the Slaughter" and some cover versions played throughout the tour, like Deep Purple's "Black Night", AC/DC's "Sin City".
 "Riding with the Angels" is a song composed while Dickinson still played with Samson.