John Ortiz used to represent some of your favorite artists like Selena, Emilio, Mazz, La Tropa F and more. We're chatting with a strictly behind-the-scenes type guy, now representing St. Jude Children's Research Hospital. Intocable and A.B. Quintanilla III y Los Kumbia King All-Stars with a special event on Thanksgiving Day benefiting St. Jude, John has all the info.