The American Grammy award-winning singer-songwriter keeps Chicago toasty.
Gregg Allman, Mavis Staples & Ray LaMontagne also on the bill.
Plus, Iron & Wine, The Tallest Man on Earth, tUnE-yArDs, and more.
Bob Mould, Broken Social Scene, and Buckethead also playing free festival.
Like it’s hot. Because it is.
Another reason there won’t be a Led Zeppelin reunion anytime soon.