Actor/comedian Kevin Hart is one of the busiest people in entertainment -- but what you may not know is that he's just as active when it comes to business. See where Kevin gained his tireless work ethic, how he got his start in showbiz, and how he's parlayed that into an empire. From 'Shark Tank' season 13, episode 10. Watch 'Shark Tank' FRIDAYS 8/7c on ABC. Stream on Hulu.