A group of high school students in Chicago, Illinois, were treated to a special performance by Grammy-winning rapper Childish Gambino.Twitter user @JamesTylers shared posted a video of Gambino being introduced by fellow rapper Chance the Rapper, who was hosting the Open Mike Chicago event. Gambino, the rap persona of actor Donald Glover, performed his hit This Is America as students rushed the stage and sang along. As of writing, the footage has over 2,000 retweets on Twitter. Credit: @JamesTylers via Storyful