Meet the world's secretive billionaires who give stealth wealth a whole new meaning, from Ike Perlmutter to Philip Anschutz

He's been called "America's most reclusive billionaire." Meet Philip Anschutz, who has been dubbed "America's most reclusive billionaire." The 83-year-old owns Anschutz Entertainment Group, which is the parent company of Coachella. "Anschutz is sort of like the Wizard of Oz," the Los Angeles economist Jack Kyser told the Los Angeles Times in 2006. Nobody sees him, yet he has a huge impact on Los Angeles."