It was just announced today that Carlos Santana will be rocking the Marcus Amphitheater on July 1st during Milwaukee Summerfest 2010. Riding the coattails of his new CD, Carlos Santana will appear with opener Steve Winwood. Tickets for this sensational act go on sale April 24th and Ticket King Milwaukee will have your prized seats. This latest Summerfest announcement means that there are only 2 acts left to be scheduled for the Marcus Amphitheater! Who will be the remaining headliners for Summerfest 2010?