Taylor Swift is postponing a show for the first time in her career.
Swift had to postpone Saturday night's sold-out show at the Yum Center in Louisville under doctor's orders because of an illness.
She tweeted the bad news to fans: "This is my first time having to do this. I'm so, so sorry."
Taylor Swift Says Broadway Inspired Her 'Speak Now' Tour
Within 20 minutes hundreds of followers had responded with get-well wishes, which were already among the most popular international trends on Twitter for the day.
Swift postponed the show until Oct. 11. She's due for a short break before returning to the road in Charlotte, N.C., on Friday in support of her multi-platinum "Speak Now" album.
© 2011 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.