This family-friendly free event (a ticketed concert also takes place at 7pm) is hosted by WBEZ, Vocalo and the Young Chicago Authors. The day kicks off at noon with tons of free activities everyone will love, from film screenings and a hip-hop American Idol–esque competition to breakdancing battles, face-painting and a pop-up art gallery. Hang out and listen to the DJs or have the kids' shirts tagged by a graffiti artist.