Arcade Fire's Will Butler has accepted The Guardian's one-track-a-day challenge and will be sharing, you guessed it, a new song every day this week. Each song will be based on news stories found on The Guardian.

The first one, 'Clean Monday', came out yesterday and was inspired by the Greek debt crisis:

"I was reading The Guardian's live coverage of the forthcoming Greek proposals of how they're going to pay off their debts, when a little blurb popped up explaining that the Greek markets were closed today because it was "Clean Monday" - the Greek Orthodox equivalent of Ash Wednesday," he explains. "It was an amazing/hilarious (well, maybe mildly amusing) coincidence to me that the Greek ministers were scrambling and figuring out how to avoid strict austerity on the day that Lent starts."

Will Butler's solo album Policy is out on March 10th.