Trent Reznor Composing Call of Duty Theme Song

Composer Trent Reznor arrives at the 69th Annual Golden Globe Awards held at the Beverly Hilton Hotel on January 15, 2012 in Beverly Hills, California. Photo: Jason Merritt/Getty Images

Oscar-winning music man Trent Reznor penned the theme song to the new installment of the wildly successful video-game series Call of Duty, he tells USA Today. "I have been wildly enthused about gaming since I was younger," explained Reznor, "and a career path I chose not to go down but did really consider was getting into programming and game design." In fact, you might have dispatched Reznor with a Call of Duty head shot without even knowing it: "As a player, I've generally focused on multiplayer."