Hav and Trag have known each other since they were kids, so it's no surprise that they have a great chemistry on the mic when they collaborate from time to time. "What's Poppin'" is one of those anti-social Bridge records that we all know and love, threatening almost as much violence as Cam'Ron's Killa Season film—which, coincidentally, also happened to feature him uttering the question, "What's poppin'?" at least 5,000 times, usually before a beat-down or shooting.