The Mosh Pit Region of our Metal Madness tournament has been pared down to just two contestants. It's old school against new school with Iron Maiden and Slipknot going at it in the Quarterfinals!

Iron Maiden's dedicated fans turned out en masse once again, helping the band's first album take down Cynic's Focus in the first round, followed by another decisive victory in Round 2 against Disturbed's The Sickness, with Maiden amassing two-thirds of the votes.

For Slipknot, it's been a battle of hyper-aggressive albums throughout the tournament. In Round 1, Slipknot knocked out Napalm Death's Scum and in the last round, it faced off against Korn's self-titled record, bumping them off with over 60 percent of the votes.

So, which album will move on to the Semifinals of Metal Madness 2017? Vote below for either Iron Maiden's Iron Maiden or Slipknot's Slipknot as the Best Debut Metal Album of all time in the poll below!

(This poll will end on Monday, March 27, at 10AM ET. Fans are able to vote once per hour, so keep coming back to make sure your favorite debut album wins!)