Rascal Flatts will launch a summer tour on June 5 in St. Louis with opening act Darius Rucker. Sponsored by J.C. Penney with associate sponsor Hershey's, the tour will conclude Sept. 12 in Boston. The itinerary also includes two stadium concerts. The first will take place July 18 at Chicago's Wrigley Field with Rucker and special guest Vince Gill. The band will also play the Columbus Crew Stadium in Columbus, Ohio -- the hometown of members Gary LeVox and Jay DeMarcus -- on Aug. 9 with Rucker and special guest Dierks Bentley.