NASHVILLE, TN - JUNE 06: Kid Rock joins Zac Brown on stage to perform "Were an American Band" during the 2013 CMA Music Festival on June 6, 2013 in Nashville, Tennessee. (Photo by Rick Diamond/Getty... more 
NASHVILLE, TN - JUNE 06: Kid Rock joins Zac Brown on stage to perform "Were an American Band" during the 2013 CMA Music Festival on June 6, 2013 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images) less 
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Getty Images | Photo By Rick Diamond / Getty Images
Fri, Jun 7, 2013 3:58 AM EDT