It’s just after midnight and Chicago’s Bottom Lounge is packed. Some kids are wearing ‘Hellfire’ merch shirts, referring to the fictional Dungeons and Dragons club from Netflix’s multi-Emmy nominated thriller Stranger Things. It’s the rare occasion where love for a TV show spills into support for a real band — Joe Keery’s psychedelic rock project called DJO (pronounced “Joe.”) At that moment, Keery, who plays heartthrob-with-a-heart of gold Steve Harrington on the series, steps onto the stage looking like the antithesis of his character in wiry glasses and matted brown hair. The room erupts. Before Stranger Things swept him up to Los Angeles, Keery lived in Chicago until 2018. Before fame, he was somewhat of a fixture in the Chicago DIY scene, performing in the indie band called Post...