Things are only heating up as our March Metal Madness tournament to determine the Best Metal Song of the 21st Century enters the Quarterfinals! Two rounds are in the books and we're down from 32 songs to just eight. The winners in this round will advance to the Semifinals, representing their division in the Final Four.

In Round 2, we saw some interesting matchups as some of the biggest bands from all eras of metal battled it out. The winners will need to keep their momentum going because this tournament shows no mercy with Iron Maiden vs. Black Sabbath, Slipknot vs. Disturbed, System of a Down vs. Avenged Sevenfold and Judas Priest vs. Pantera. We told you it was getting fierce!

Voting for the Quarterfinals will close at 9AM ET on Tuesday, March 22, and fans can vote once per hour until then! Make sure to vote early and vote often to ensure your favorite song makes its way to the next round on its way to being crowned the Best Metal Song of the 21st Century. Ready? Fight!

Click the button below to start voting in the Quarterfinals of March Metal Madness!