Crowd Erupts in Fist Flying Brawl During Chief Keef Concert (@ChiefKeef)

During a recent Chief Keef concert his fans in attendance broke out into a huge melee while he was in the middle of his performance.  This clip starts out with Keep getting a new grill for himself, and then transitions into the violent occurence brought on by some unruly fans.  Keef and his crew continued to perform while the fists were flying.