Chicago’s three-day, punk-rock carnival was host to Slayer, Jawbreaker, Raconteurs, Patti Smith, Rise Against, Bob Mould, Rancid, Bikini Kill, Lucero, the Struts, and more. Here are our favorite guitar-related moments from the 15th annual gathering.

The Flaming Lips’ Michael Ivins

The experimental psych-rock weirdos’ cofounder and bassist Michael Ivins split duties between his faithful Fender J and keyboards while spotlighting Yoshimi Battles the Pink Robots.