Participation Lineup For 2024 Summerfest. Here is the complete participation lineup for. All performers and showtimes are subject.
Here’s the 2024 summerfest lineup, organized by day so you can plan your ultimate fest. Summerfest already announced dozens upon dozens of headliner acts, plus a few late additions with sza at the amfam amp as well as gavin degraw and hanson at the bmo.