Those living in the city made plans on social media to start singing together at 7pm on 21 March.
Their song of choice was the 1986 hit “Living’ on a Prayer”.
Participants shared videos of themselves belting out the tune from their yards or from their open windows – joining in the event while respecting the rules of social distancing.
Jon Bon Jovi told people in an Instagram video that he would take part in the singalong.
“Hey Chicago! I heard that you guys were about to open up your windows and scream and shout to ‘Livin’ on a Prayer,’” he said.
“I wanted you to know that I’m warming up and getting ready to sing along with you.”
“In these trying times, I am with you with all my heart and my soul,” he added.
A stay-at-home order went into effect in Illinois over the weekend to limit the spread of coronavirus.
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