Definitely an interesting choice considering Amon Amarth are a Swedish Death Metal band that sing about epic viking lore and SOAD are a left-leaning group of Armenian-Americans that sing about drugs and politics...but then again maybe that's why it works so well for me. The song will be a downloadable bonus track when you pick up Surtur Rising (in stores March 29th) through an FYE outlet. You can pre-order the album here.