Chicago Open Air 2019 Set Times RevealedChicago Open Air 2019 Set Times RevealedSystem of a Down and Tool are the weekend's headliners.Joe DiVitaJoe DiVita
System of a Down + Tool Lead 2019 Chicago Open Air FestivalSystem of a Down + Tool Lead 2019 Chicago Open Air FestivalSee who else is playing.Chad ChildersChad Childers