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Jennifer Nettles performs during the CMA 2013 Country Christmas on November 8, 2013 in Nashville, Tennessee. (Photo by Erika Goldring/Getty Images) ( 187440181 )

Mary J. Blige performs during the CMA 2013 Country Christmas on November 8, 2013 in Nashville, Tennessee. (Photo by Erika Goldring/Getty Images) ( 187440170 )

Luke Bryan performs during the CMA 2013 Country Christmas on November 8, 2013 in Nashville, Tennessee. (Photo by Erika Goldring/Getty Images) ( 187440208 )

Michael W. Smith and Jennifer Nettles perform during the CMA 2013 Country Christmas on November 8, 2013 in Nashville, Tennessee. (Photo by Erika Goldring/Getty Images) ( 187440198 )

Darius Rucker performs during the CMA 2013 Country Christmas on November 8, 2013 in Nashville, Tennessee. (Photo by Erika Goldring/Getty Images) ( 187440169 )

Duck Dynasty's Willie Robertson, Jennifer Nettles and Luke Bryan perform during the CMA 2013 Country Christmas on November 8, 2013 in Nashville, Tennessee. (Photo by Erika Goldring/Getty Images) ( 187440172 )

Duck Dynasty's Willie Robertson and Luky Bryan perform during the CMA 2013 Country Christmas on November 8, 2013 in Nashville, Tennessee. (Photo by Erika Goldring/Getty Images) ( 187440200 )

(L-R)Charles Kelley, Dave Haywood and Hillary Scott of Lady Antebellum perform during the CMA 2013 Country Christmas on November 8, 2013 in Nashville, Tennessee. (Photo by Erika Goldring/Getty Images) ( 187440173 )

Jennifer Nettles performs during the CMA 2013 Country Christmas on November 8, 2013 in Nashville, Tennessee. (Photo by Erika Goldring/Getty Images) ( 187440196 )

Kellie Pickler performs during the CMA 2013 Country Christmas on November 8, 2013 in Nashville, Tennessee. (Photo by Erika Goldring/Getty Images) ( 187440229 )

Jennifer Nettles performs during the CMA 2013 Country Christmas on November 8, 2013 in Nashville, Tennessee. (Photo by Erika Goldring/Getty Images) ( 187440175 )

Jake Owen performs during the CMA 2013 Country Christmas on November 8, 2013 in Nashville, Tennessee. (Photo by Erika Goldring/Getty Images) ( 187440177 )

(L-R) Joe Don Rooney, Gary LeVox and Jay De Marcus of Rascal Flatts perform during the CMA 2013 Country Christmas on November 8, 2013 in Nashville, Tennessee. (Photo by Erika Goldring/Getty Images) ( 187440184 )

Sheryl Crow performs during the CMA 2013 Country Christmas on November 8, 2013 in Nashville, Tennessee. (Photo by Erika Goldring/Getty Images) ( 187440188 )

Lucy Hale performs during the CMA 2013 Country Christmas on November 8, 2013 in Nashville, Tennessee. (Photo by Erika Goldring/Getty Images) ( 187440194 )

Alyth McCormack and Trace Adkins perform during the CMA 2013 Country Christmas on November 8, 2013 in Nashville, Tennessee. (Photo by Erika Goldring/Getty Images) ( 187440237 )

Lily Costner and Trace Adkins perform during the CMA 2013 Country Christmas on November 8, 2013 in Nashville, Tennessee. (Photo by Erika Goldring/Getty Images) ( 187440240 )