have sigur rós ever collaborated with mogwai?
no. there are a couple of mp3s going around named e.g. “sigur ros & mogwai – luvstory”. these mp3s have nothing to do with sigur rós, nor with mogwai. they were made by the korean band 500won project whose name was put on the mp3 by someone outside the band, which resulted in sigur rós and mogwai fans spreading the mp3s around the internet.