Summerfest 2025 24 May. Discover great performances and make amazing memories with multiple festival stages of live music, experiences, and more. 2025 milwaukee summerfest headliners include the killers, megan thee stallion, lainey wilson, benson boone, lumineers, hozier and more;
Discover the lineup, dates, venue, and more. 2025 summerfest lineup milwaukee, summer is on the horizon!