'It was way overboard': Troopers clash with large crowds at New Jersey concert
Police officers in riot gear with batons (Shutterstock)

EAST RUTHERFORD — Rowdy crowds and state troopers exchanged beer bottles and tear gas Sunday night outside MetLife Stadium as the annual Summer Jam concert played on inside. State Police said Sunday night the incident began when crowds tried to illegally enter the sold-out show, hopping over fences or pushing their way past security. A "small…