Taylor Swift will open the last dress rehearsal for the U.S. leg of her Speak Now World Tour to fans as a fundraiser for victims of the tornadoes that ripped through the Southeast.

This means that 13,000 fans will get to view Taylor's show nearly a week early if they attend "Speak Now . . . Help Now!" May 21 at Nashville's Bridgestone Arena.

“I was watching the coverage of the tornadoes backstage at rehearsals, and I wanted to do something for the families affected by the damage,” Taylor said in a press release. “I’ve never opened a rehearsal to the public before, but I felt that inviting my fans to the last rehearsal for the Speak Now Tour would be a great way to raise money.

"We’ll probably still be doing some fine-tuning to the show that night, since this will be a true rehearsal,” she says, “but I feel like it is so important for me and my fans to help if we can.”

More event details will be available beginning Monday, May 9, at taylorswift.com.