Roy Rochlin/Getty ImagesFor over 40 years, BRIC Celebrate Brooklyn! Festival has been taking place in New York's Prospect Park. It's one of the city's longest-running outdoor performing arts festivals -- and it's free. The summer-long festival kicked off last week and Executive Producer Diane Eber dished to ABC Audio on what festival-goers can expect. "First and foremost, good vibes," she shares. "We worked really hard to create those good vibes across the board. From our staff, from the moment you get in line, we want that experience to start." In ad...