If Jimmy Iovine has a trademark, it’s his hat. For decades, the record producer turned label boss turned headphones magnate turned all-around music-biz oracle has rarely appeared in public without something atop his head, be it a casual wintry wool knit number or a navy blue baseball cap featuring the logo of his multi-billion-dollar corporation, Beats. What Steve Jobs was to mock turtlenecks or Phil Knight is to the swoosh, Iovine is to hats. And yet, it was still slightly incongruous to see him last May, standing at a podium in front of the University of Southern California’s graduating class of 2013, sporting a poofy doctoral tam with a gold tassel dangling from its side.

Entrepreneurs Jimmy Iovine and Dr. Dre honored at the WSJ Magazine 2014 Innovator Awards.

WSJ Recognized Jimmy and Dre