3. Zack de la Rocha
David Bowie and Axl Rose might be reclusive, but they seem like Darius Rucker in comparison to Zack de la Rocha. The Rage Against the Machine frontman almost never talks to the press, and when he does speak onstage, it's some of the most radical shit you can imagine. "If the same laws were applied to U.S. presidents as were applied to the Nazis after World War II, every single one of them, every last rich white one of them from Truman on, would've been hung to death and shot," he said at Coachella in 2007. "And this current administration is no exception. . . This whole rotten system has become so vicious and cruel that in order to sustain itself, it needs to destroy entire countries and profit from their reconstruction in order to survive." The guy is so extreme, he thinks Jimmy Carter should be not just hung, but hung and shot. He also refuses to record any new Rage records, move forward on a solo project or release a full-length album from his other band One Day as a Lion. We have no idea what he does all day, but it's probably pretty rebellious.