Considering that this song is #4 on iTunes, you've probably already heard it, &/or added it to your iTunes library. However... I just discovered this song this past weekend and have probably listened to it a dozen times in the past couple days, so I had to share it with you. I can't get enough of the haunting melody!
I also found a fascinating cover of the song on YouTube. The intensity of the music isn't quite as good as the original, but overall the video is pretty cool. As someone who took one semester of guitar about 10 years ago, I can't even imaging how difficult it must be to play one guitar with 4 other people while you're all singing! Lol. They make it look remarkably easy though. ;)