Chance the Rapper loves doing great things for the kids of Chicago: Yesterday (June 24), he hosted the Teens in the Park Festival – a free concert for teenagers in Chicago and, during his set, he brought fellow hip-hop do-gooder Kendrick Lamar onstage. Check out clips of their performance below.

The city-sponsored Teens in the Park was held on Northerly Island in Chicago and was open only to young people ages 13 through 24 (and adults accompanying kids). The event also featured performances from Chicago emcee DJ Low and others as well as breakdancing, jewelry-making and graffiti art.

In May, Chance also brought Kanye West and Vic Mensa to Chicago for a free performance for high school kids. Meanwhile, Lamar was recently given the "Generational Icon Award" by the California State Senate, and also met a fan who said her life was saved by his music.

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