Arwady: No sign Lollapalooza led to spike in COVID-19 cases Ryan Voyles 3 years ago Chicago’s top doctor said Thursday there is no evidence the Lollapalooza music festival earlier this month was a super-spreader event.To access this content, you must purchase 1 Year Health News Illinois Subscription or 1 Year Group Subscription - Up to 5 Users, or log in if you are a member.