View the original article at: http://www.countryweekly.com/news/sammy-hagar-mel-tillis-added-toby-keiths-okla-twister-relief-show
The big Oklahoma Twister Relief Concert just got a little bigger—and louder.
Rocker Sammy Hagar—a longtime friend of Kenny Chesney and country music—has been added to the July 6 Oklahoma Twister Relief Concert at Oklahoma Memorial Stadium in Norman.
That's the show that Toby Keith is putting together  and headlining, along with Garth Brooks, Willie Nelson, Trisha Yearwood and Ronnie Dunn.
Also added to the show: Mel Tillis and John Anderson.
Tickets go on sale Friday (June 21), and they will be $25 each. Some music industry experts think those tickets could be gone within an hour of going on sale.