OKLAHOMA CITY - The promoters behind Toby Keith's Twister Relief Concert in Norman announced Thursday that a limited number of additional tickets will be available Friday to the sold-out show.

Tickets originally went on sale Friday, June 21, and sold out in about an hour. After finalizing the concert's production, event organizers were able to release more seats for purchase.

Those tickets will go on sale Friday, June 28, at noon central time. People can buy those tickets through Ticketmaster.com. Buyers can also call 800-745-3000 or visit a Homeland store location.

All tickets cost $25. There is an eight-ticket purchase limit. All net proceeds will benefit The United Way of Central Oklahoma May Tornadoes Relief Fund.

The July 6 concert will be held at Gaylord Family – Oklahoma Memorial Stadium. It will feature Keith, Garth Brooks, Trisha Yearwood, Willie Nelson and Sammy Hagar. Carrie Underwood will also appear via satellite from the Grand Ole Opry in Nashville.