Harley Davidson Festival 2024 Lineup. Milwaukee — summerfest on thursday announced its 2024 lineup, with over 140 headliners taking the stage across three weekends. In 2024, we took over four iconic venues and brought together some of the biggest names in music and entertainment.

In 2024, we took over four iconic venues and brought together some of the biggest names in music and entertainment. So far, there are setlists of 43 gigs in 6 venues.