It has been cited as one of the most influential heavy metal albums of all time, and is widely acknowledged as one of the best and most iconic albums of the genre. The Number of the Beast also cemented Iron Maiden as one of "the biggest metal bands on the planet". Of all the songs in the album, "The Number of the Beast", "Run to the Hills" and "Hallowed Be Thy Name" remain on the set lists of nearly all of the band's concert tours, with the latter two often used to close a show. All three songs have been released as singles in various forms. The album is also Iron Maiden's highest selling album worldwide with over 14 million sales estimated.
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Piece of Mind is the fourth studio album by British heavy metal band Iron Maiden, originally released in 1983. The album ranked 21 on IGN's list of the top 25 metal albums. In 1983, Kerrang! magazine published a poll of the greatest metal albums of all time, with Piece Of Mind ranking number 1, and with The Number of the Beast at number 2. Piece Of Mind along with Iron Maiden's follow up studio album Powerslave are the bands second highest selling albums with estimated sales in excess of 13.5 million worldwide. In 1989, Steve Harris announced that Piece Of Mind was the 'best studio album' Iron Maiden had recorded. Until 2000's Brave New World, this album was Bruce Dickinson's favorite album.

That's the way I like it baby

The first album to successfully merge the amazingly disparate sounds of rap and heavy metal, Rage Against the Machine's self-titled debut was groundbreaking enough when it was released, and many would argue that its importance and influence remains unchallenged and unsurpassed to this day.

It's hopelessly over-the-top and self-indulgent, but there's something about this album that just seems to still kick ass. It feels like they still were working on this one; whereas, their future efforts often seemed a little silly.