Chicago’s other 3-day festival hosts an eclectic group of artists that span all of pop music.

Against Me!’s James Bowman

During most of the band’s afternoon set—including “Pints of Guinness Make You Strong”— Bowman kept it simple with his 2005 Gibson Les Paul ’57 Goldtop reissue with Seymour Duncan Antiquity pickups and Ernie Ball Cobalt .010-.046 strings.