Ok, first, my mistake - this wasn't I V vi IV, but the infamous i VI III VII. I somehow mixed both. Not that this change much to the fact that it's overused.
The band is called Of Monsters and Men, it's an extended live version of a song called Little Talk - and they're currently listening to that awful piece of junk for the 6th time in a row!
I though Iceland was awesome, because, you know, The Sugarcubes/Björk and Sigur Rus... But right now I'm not sure I'll be able to forgive them for that horribly insipid hipster band.
I nominate you for the Arcade Fire award, Iceland!
If I've offended any Arcade Fire or Of Monsters and Men fans - you're welcome! ;)