Government name: Ben Haggerty

In an interview with Dirty Laces, Macklemore explained he got his rap name from an assignment in a high school graphic design class. He and a group of other students were supposed to create a fictional superhero. He decided to call it Professor Macklemore. In his free time, he would often go to thrift shops and buy plaid golf pants and fur coats, and when he would wear these outfits, he would make his friends call him "Professor Macklemore," which they later shorted to "Macklemore" because, he said, nobody wants to be forced to call their friend "Professor." (I dunno. Public Enemy and X-Clan didn't seem to mind.)