In March, Summerfest announced more than 90 headliners, but as expected, there were more to come. Today the festival revealed another 15 grounds stage headliners, listed below:
Matt Nathanson Robert DeLong OK Go Esperanza Spalding Cowboy Mouth Big Data Vinyl Theatre The Wind + The Wave Angaleena Presley Ximena Sariñana Amanda Shires Kaleo Clare Dunn Failure Logan Mize
There's still no confirmation on what dates these headliners will perform. That information is expected to come in about two weeks. Summerfest will run from June 24-28 and June 30-July 5 this year.