Sigur Rós - Aniversário Agaetis Byrjun:

To mark the 10th anniversary of the Icelandic release of their
breakthrough album 'Agaetis Byrjun', Sigur Ros have made available
two exclusive live performances from the original launch party
concert at the Icelandic Opera House on the night of June 10, 1999 -
back when few people outside Reykjavik hadn't the foggiest clue who
they were:

nýja lagið from sigur-ros.co.uk on Vimeo.