We've finally arrived at the Final Round of March Metal Madness 2014. In our quest to find the greatest metal album of the 21st century released so far, we started with 32 recordings. Now, we're down to just two, and the remaining albums are both powerhouse records that have helped define metal in the 2000s.

Slipknot's 2001 full-length, 'Iowa,' has defeated a number of landmark releases during March Metal Madness 2014. 'Iowa' first bested Hatebreed's 'Perseverance' before taking down 'With Oden on Our Side' by Amon Amarth. In a stunning victory, Slipknot received more votes than Iron Maiden's 'Brave New World,' and now 'Iowa' owns a win against Lamb of God's 'Ashes of the Wake.'

Tool's influence in the 21st century can't be ignored. Fans voted for 'Lateralus' over Cynic's masterful 'Traced in Air' in Round 1. Tool followed up their first win with a victory over Cannibal Corpse's 'Kill' before dismantling the mighty Pantera and their sole 21st century full-length, 'Reinventing the Steel.' Tool's fourth win was attained in a battle against System of a Down's 'Toxicity,' bringing Maynard, Adam, Justin and Danny to the Final Round.

Will Slipknot's 'Iowa' be named the greatest metal album of the 2000s? Or will Tool's 'Lateralus' earn the distinction. The decision is yours. Vote for your favorite album in the poll below!

(This poll will end on Sunday, April 6 at 11:59 PM ET. Fans are able to vote once per hour, so keep coming back to make sure your favorite album wins!)