Everyone's favorite arena-ambient, ultra-beautiful, singing-in-a-nonsense-language band Sigur Rós is back with a new single ("Ekki Múkk") and new album (Valtari) set for May 29. So, how does the group sound four years after their last studio album? Still very pretty with orchestral swells and a patient pace that's made for staring out train windows and falling in love. ekki múkk by sigur rós