Like Black Sabbath, Iron Maiden have a massive five albums in this Top 50. With an estimated 14 million sales, 'Beast was Maiden's third studio album, and their first to feature Bruce Dickinson's incredbile vocal prowess.

Fans will still argue that Invaders is a weak opener, but the rest is utterly iconic stuff, not least the brilliant title track and the Iron Maiden song that your mum knows.

The second best heavy metal album of all time, eh? The winner had better be good...

Your votes:

"Such a difficult question. Master Of Puppets, Number Of The Beast, Reign In Blood, Back In Black. Cowboys From Hell. No Sleep ‘Till Hammersmith. But really - Physical Graffiti?" (From Johannes via Facebook, thanks)

“Number Of The Beast, Master Of Puppets, Painkiller.” (Thanks, eadgbe)

“Number Of The Beast - Iron Maiden.” (Thanks, dudewheresmybass)

“The Number Of The Beast - Iron Maiden.” (Thanks, eventhelosers)

“All of Maiden's ‘80s records would be in contention along with Priest's ‘70s records (except Rocka Rolla), Scorpions with Roth, Ride The Lightning, Trouble - Psalm 9, Angel Witch's debut, Dark Angel - Darkness Descends and of course most of Sabbath's albums.” (Thanks, reverend)

“The Number Of The Beast - Iron Maiden.” (Thanks, Akeldama)

“Iron Maiden: The Number Of The Beast, Killers.” (Thanks, pleskoch)

“Iron Maiden - Number Of The Beast.” (Thanks, citson)

“Iron Maiden - Number Of The Beast.” (Thanks, shizzle)