The popular ascendance of Sigur Rós offers a reminder never to label anything as impossible. Remember, only a decade ago, Sigur Rós was, for many, a mysterious Icelandic group who followed a musical appearance in a Cameron Crowe movie with an album that sported punctuation for a title, unnamed songs, and lyrics sung in a language of the band's construction. And now, on the first day of fall, they'll play in a large amphitheater in the American South. Miracles never cease, right?Sigur Rós has reached these strange new heights by never forsaking the unquenchable power or grandiose textures of their music even as they've moved toward more conventional song structures. This year's excellent Kveikur pushes back into the stratosphere, with pieces that hang again like mighty amoeboid monsters, waiting to overtake any new space they find. Let's hope municipal officials ease off decibel limits for a night, so that one of the best live bands in the world can rattle the city.
—Grayson Haver Currin