Ticket King Milwaukee has Kanye West Summerfest tickets available for his headlining performance at the Marcus Amphitheater on June 30th. Kid Cudi will be the opening act for this show. When picking a seat at the Marcus Amphitheater, it’s hard to go wrong as there isn’t really a bad seat in the house. This concert should be huge, as Kanye West has never performed a concert in Milwaukee. Tickets can be ordered online or by calling our office at 414-273-6007.