Earth Wind and Fire concert turns into a riot scene

started as a small fight. But small fight at Earth, Wind and Fire concert scene turned into a extremely violent scene. The violence reached to such an extent that it will put even the most uncivilized person to shame. Though nobody is not sure who and what sparked of the fight, but the police is saying that the crowd of 400 people start throwing the bottles, damaging the parked cars and setting fire to the things around.