Michael Kors started out as a fashion designer 38 years ago. According to Business Insider, Kors has designed for multiple brands and taken his own company public. He's even starred as a judge on Bravo's reality series, " Project Runway." Kors reached billionaire status in 2014, but most recent estimates put him closer to a net worth of $600 million today. Michael Kors opened his first store at the tender age of 11.