Fan-filmed video footage of Swedish death metallers AMON AMARTH performing the song "Guardians Of Asgaard" at the Swiss edition of Metalfest on May 29 in Pratteln with a special guest appearance by vocalist L.G. Petrov of fellow Swedes ENTOMBED can be viewed below."Guardians Of Asgaard" comes off AMON AMARTH's seventh full-length album, "Twilight Of The Thunder God", which came out in October 2008. In a 2010 interview with The Norse Mythology Blog, AMON AMARTH vocalist Johan Hegg stated about his band's collaboration with Petrov on the studio version of "Guardians Of Asgaard", "First of all, [the song is] not very mythologically correct, because the guardian of Asgard is Thor. I mean, that's the way it is. But we had this idea that we wanted to do a song with L.G. Petrov from ENTOMBED, so we made it into two guys, and we sing together." He continued, "Technically, in the lyrics, it's me and L.G. Petrov who are the guardians of Asgard. I also use a reference to ENTOMBED when I sing 'marching down the left-hand path,' which is the first album. You know, stuff like that. It's meant to be just a cool party song. But when we do it live, it's more kind of trying to reach out to fans and say, 'You are fans of this music. You enjoy the mythology. You learn stuff about this. You are a guardian of Asgard, too, because you carry the knowledge on. In a deeper meaning, to pass the knowledge on to someone even if I said I don't want to preach and I don't want to teach. Still, if you have the knowledge, if you learn about it and then pass it on, you are a guardian of Asgard. That means the knowledge will never die out. Technically, you are probably a better guardian of Asgard than I am. Ha! As I said, it's not meant to be a super-deep song or anything. It's just meant to be cool lyrics." "Surtur Rising", the eighth studio album from AMON AMARTH, sold around 15,000 copies in the United States in its first week of release to debut at position No. 34 on The Billboard 200 chart. The band's previous CD, "Twilight of the Thunder God", opened with more than 11,000 copies back in 2008 to land at No. 48. Named in tribute to Surtur, leader of the fire giants of Muspelheim ("flame land") and the oldest being in the nine worlds of Norse mythology, "Surtur Rising", which came out in North America on March 29 via Metal Blade Records, features 10 tracks of sword-wielding, fist-pumping, hyper climactic battle anthems. The album was once again recorded at Fascination Street Studios in rebro, Sweden with Jens Bogren and features strikingly brutal cover art by Tom Thiel.