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Brantley Gilbert has a vested interest in this year's Indianapolis 500.  The country star is sponsoring rookie driver Sage Karam, whose car features the cover art from Gilbert's new album, "Just As I Am." 

Brantley says Sage has already given him a demonstration of what he can do behind the wheel. 

But Gilbert isn't the only country star who'll be on hand for the big race.  LeAnn Rimes has been tapped to sing the national anthem at Sunday's event. 

Meanwhile, Jason Aldean is slated to headline the Legends Day concert, taking place at the Indianapolis Motor Speedway on Saturday.  Tyler Farr is also on board for the special show, honoring Indy legend Mario Andretti. 

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