Country star Taylor Swift was forced to postpone four of the upcoming dates on her summer tour after coming down with bronchitis.  The singer's doctor advised the move, saying she would not be well enough to perform.  Her schedled appearance in Charlotte, North Carolina has been moved from July 8th to November 16th, her July 9th and 10th shows in Atalanta have been moved to October 1st and 2nd, and her Louisville, Kentucky show scheduled to take place last Saturday has been moved toOctober 11th.  Swift's management says that the tour will resume as scheduled October 14th in Montreal, Canada, and no other dates will be affected.