Up until Cooler Than Me came out, nobody but the bloggers even knew who Mike Posner was. When Posner first came onto the scene with his much beloved A Matter of Time mixtape, he was still attending Duke University and doing concerts on the weekends. A year-and-half later and now he's a household name with a ton of radio play. Let's not forget about the music that started it all. Here are his first 2 mixtapes that still get a ton of rotation in my iPod. And just for the record Cooler Than Me ft. Big Sean>>>Cooler Than Me without Big Sean.