Keith's lineup for the July 6 Oklahoma Twister Relief Concert includes Okies Garth Brooks and Ronnie Dunn, as well as Brooks' wife Trisha Yearwood and Willie Nelson, Tulsa World reported Thursday.
"I grew up in Moore, I live in Norman and I've got lots of family and friends who were directly affected," Keith said in a statement.
I know these folks, and they're resilient, but we're going to keep helping them any way we can. I'm proud to get together with some others from around here who are just as committed as I am to supporting these communities.
"I told Toby we were at his service for whatever he chose to do," Brooks said.
"I am amazed at the human spirit the tornado victims have shown. I am humbled by the giving of the volunteers. It is an honor to get to be a part of this healing process."
Tickets for the show at the University of Oklahoma's Gaylord Family-Oklahoma Memorial Stadium in Norman go on sale June 21.
Notable deaths of 2014 [PHOTOS]