By Christopher "CJ" Smith
Hot off the heels of the release of their fifth album Með Suð í Eyrum Við spilum endalaust (which will debut at #15 on next week's Billboard albums chart), Icelandic post-rock heroes Sigur Rós joined forces this past weekend with Iceland's other big musical export, Björk, for a concert to promote environmental awareness in Iceland and the rest of the world.