Here's Group 4 of the Extreme Metal Olympics, and four bands have managed to make it to Round Two of our feature. Keep voting for your favorite bands who continue to compete in the Extreme Metal Olympics.

Swedish progressive legends Opeth defeated the Belgian death metal band Aborted, moving on to compete against Japanese eclectic metal act Dir En Grey. In an incredibly close battle, Dir En Grey just managed to edge out the Austrian death machines of Belphegor.

Polish death metal outfit Decapitated came out with a victory against Swedish death metal legends Hypocrisy in a close battle. Decapitated now look to beat yet another Swedish metal band, Arch Enemy, who defeated Canadian technical death merchants Cryptopsy in the Opening Round.

Check out music from these four bands and vote for your favorites below!

(The Round 2 polls will close on Friday, August 3, at 12 noon ET. Fans are able to vote once per hour in every poll, so keep coming back to make sure your favorite band wins!)

Opeth, 'The Lotus Eater'
Dir En Grey, 'Different Sense'
Decapitated, 'Spheres of Madness'
Arch Enemy, 'Nemesis'