Some real mindless behavior went down after a Mindless Behavior autograph session Saturday night at Ford City Mall in Chicago.
Reports say that a group of teens entered the mall looking to start trouble. The teens ran through the mall and one boy threw $100 worth of bills in the air, which made everybody scramble for the cash.
More than 100 people started rioting and looting about 45 mintues after the Mindless Behavior event ended. Mainly teenagers were apart of the riot and the mall needed more than 50 squad cars to come put an end to it. Twenty people were arrested and two people were injured because of the riot.