Carrie Underwood has been added to Toby Keith's sold-out Twister Relief Concert on July 6th.
The line-up already includes Toby, Garth Brooks, Trisha Yearwood, Willie Nelson, Sammy Hagar, Ronnie Dunn, Mel Tillis and John Anderson. More stars are expected to be announced soon.
Because of a previous commitment to perform on the Grand Ole Opry that same night, Carrie will be beamed in via satellite from the Opry stage.
Proceeds from the concert will go to the United Way of Central Oklahoma May Tornadoes Relief Fund.