12. What we know The Lumineers with special guest Hippo Campus will headline Summerfest on July 5 at the festivals biggest stage, the American Family Insurance Amphitheater. Tickets for The ...

MILWAUKEE - Summerfest and UScellular unveiled plans on Tuesday, Feb. 25 to bring back its US Mode Lounge experience, located at the UScellular Connection Stage. The lounge launched in 2023.