Entrepreneurial drive comes naturally for two high school boys in Chicago who launched a start-up DJ business a year ago. One of them is a first-generation Mexican with a 4.0 GPA who takes honors Calculus and Physics. He is going to college to be a Doctor. The boys built their company from scratch, bought their own equipment, and have engagements every week. The business is cash-flow positive and the boys are saving their profits for college.