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Toby Keith has more to celebrate on Monday than turning 52.  Over the weekend he was helping out the people of his home state with the "Oklahoma Twister Relief Concert." 

The country star organized and headlined Saturday's show, which "USA Today" says drew a record crowd of more than 60,000 people to the University of Oklahoma's Gaylord Family Oklahoma Memorial Stadium. 

Keith's daughter Krystal launched the event with a performance of the national anthem, with Mel Tillis following.  Garth Brooks, who needed to return to Las Vegas for a show Saturday night, took the stage next, and shared his performance slot with wife Trisha Yearwood.  And concertgoers didn't have to wait until the very end to see Toby, who teamed up with Willie Nelson on a few songs.  John Anderson, Ronnie Dunn, Wade Hayes, and Sammy Hagar performed as well, while Carrie Underwood appeared via satellite from Nashville. 

But the weather didn't make it easy on the crowd.  NBC News says the temperature at the show's scheduled start time of 3:00 p.m. was 93 degrees, and more than 1,200 people suffered heat-related problems.  Nearly 200 people needed more extensive treatment, and 21 concertgoers were sent to the hospital.  And it was the weather that brought everyone together in the first place.  The event was raising money for the United Way, which is assisting residents following the devastating tornadoes that tore through Oklahoma in late May.

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