Sigur Rós have been promising new songs, a new live show, and “maybe some other *new* things” on their upcoming tour since last November, and last night, they finally made good on those promises. The Icelandic post-rock wizards didn’t waste any time, opening their performance at Barcelona’s Primavera Sound Festival with a very impressive light show and the live debut of a powerful new song called “Óveður.” Watch below.