Toby Keith, Ronnie Dunn and Garth Brooks' Oklahoma Twister Benefit concert will take place on 6 July (13).
The trio will hit the stage at the Oklahoma Memorial Stadium alongside Mel Tillis, Brooks' wife Trisha Yearwood, Willie Nelson and rocker Sammy Hagar.
The charity gig comes several weeks after Keith's fellow Oklahoma native Blake Shelton staged his Healing in the Heartland concert at the Chesapeake Energy Arena in Oklahoma City with his wife Miranda Lambert, Usher, Vince Gill and Reba McEntire.
The televised concert helped raise more than $6 million (£3.9 million) for the recovery effort in Moore, Oklahoma, which was left ravaged by a deadly twister last month (May13).
Kings of Leon and The Flaming Lips will co-headline another show benefiting victims of the storms on 28 July (13).