SAN DIEGO – On Saturday, July 27th, a Concert of Hope starring KC and the Sunshine Band will raise money to help homeless youth. In this Zevely Zone, I preview the concert. If you were a 70’s baby like me, my co-host is a household name, but before I reveal who she is, I want to tell you how Doors of Change is making a huge difference in our community. 19-year old Sergio Perez may be the toughest teenager I’ve ever met. “I have been homeless since I was 14 or 15 years old,” said Sergio.