Taylor Swift was forced to cancel and reschedule a show in Louisville, Ken. last night (July 2) after falling ill. There is no word on what Swift has come down with, but this is the first time she has cancelled a live performance in her entire career.

Although her fans most likely understood her situation, Ms. Swift seemed upset having to postpone the show. On her official Twitter page, the 21-year-old 'Story of Us' singer posted this message: "Louisville, I so sorry to have to postpone this show to Oct 11. This is my first time having to do this. I'm so, so sorry."

A statement was also posted to Swift's official website: "Due to illness and under doctor's orders, Taylor Swift has been forced to postpone tonight's performance, and the show has been rescheduled."

Tickets to the Louisville show on Saturday night will be honored at the October date. If you can't make it to the October concert, then you can get a refund at your specific ticket retailer.

Hopefully, the bubbly songstress can get better before her next performance, which is scheduled for July 8 in Charlotte, N.C.

Watch the Taylor Swift 'Story of Us' Video