Sigur Rós has been creating compelling, ethereal soundscapes for quite some time now. "Agaetis Byrjun" is probably one of my all time favorite albums. Beautiful music. As the years have progressed though, at times the the band's sound almost feels derivative of itself, like there's no further room to explore. That may be changing on upcoming album "Kveikur" if the subtle, black metal elements of first single "Brennisteinn" are any indication. Watch the video below and look for the album in June from XL.