Today is Casimir Pulaski Day, just in case you didn’t know. And what better way to celebrate the occasion than partaking in an early demo of the famous Sufjan Stevens’ song. It would appear that Sufjan is doing some spring cleaning after recently sharing an unreleased song a little while back, and has now unearthed a demo of the Illinois track. “Not sure when I recorded this, but I was obviously still working it out. XXOO Sloppy Joe” posted Sufjan on his Tumblr today. Who knows what else he’ll find and share?! Listen below.