There are button-pushers, and then there are music selectors who respect and elevate the art of DJing. DJ Step, the Chicago Fire’s official DJ and music director, has proven himself among the latter.

As you should already know, before A-Trak crushed the dance music game, he was a young turntablist prodigy, performing with legends like Q-Bert and DJ Craze, among many others. We remember when he was ...