Violence Erupts As Chris Brown & Big Sean Perform At New Jersey's Summer Jam! Find Out Why State Troopers Dispersed The Crowd HERE!
Unfortunately, it will probably end with only a few more lineups as several arrests were made outside New Jersey's MetLife Stadium.
While the concert went off inside, the street outside was filled with tear gas, police with riot shields, and even a tank!
According to NJ State Police, the violence began when fans tried to crash the concert. They said in a statement: