Looks like President Obama has school spirit after all! A mere day after he chose the University of Chicago over Columbia as a site for his presidential library, he appeared wearing a Columbia t-shirt on Michelle Obama's Instagram. The First Lady is celebrating College Signing Day by encouraging others to share photos of themselves in their college gear. The take-away message? Save the free t-shirt you got at that basketball game freshman year; it might come in handy when you're president...or when you're painting your bedroom, whichever happens first.