Bruce Springsteen & the E Street Band have added six new U.S. dates to their worldwide tour, including a Sept. 6 show at Boston's famed Fenway Park — the first time in history the venue will be used for a major concert. Among the other stops added to the tour: Chicago's Comiskey Park on Aug. 13, Detroit's Comerica Park on Sept. 21 and Milwaukee's Miller Park on Sept. 27. Tickets go on sale Saturday.