Summerfest 2018 Drax Project Louis The Child Abby Jeanne Foster The People Chicken Wire Empire Chris Lane Steven Tyler1a Pixies The Fray Kesha DJ Jazzy Jeff Machine Gun Kelly Brett Young Slightly Stoopid Michael Franti and Spearhead Flaming Lips Flaming Lips Echosmith Borns Janelle Monae Hunter Hayes Jon Batiste With The Dap-Kings Jonathan Davis Of Korn Gin Blossoms