NASHVILLE, TN - APRIL 16: Vince Gill, Hank Williams Jr., Kid Rock, Keith Urban and Trace Adkins perform during Keith Urban's Fourth annual We're All For The Hall benefit concert at Bridgestone Arena ... more 
NASHVILLE, TN - APRIL 16: Vince Gill, Hank Williams Jr., Kid Rock, Keith Urban and Trace Adkins perform during Keith Urban's Fourth annual We're All For The Hall benefit concert at Bridgestone Arena on April 16, 2013 in Nashville, Tennessee. (Photo by Frederick Breedon IV/Getty Images for the Country Music Hall of Fame and Museum) less 
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Getty Images | Photo By Frederick Breedon IV / Getty Images for the Country Mus
Wed, Apr 17, 2013 1:04 AM EDT