 The song became the best @-@ selling country collaboration single in digital history in 2011 , until it was <unk> by Blake Shelton and <unk> <unk> ' " Boys ' Round Here " in 2014 . It is Aldean 's second song to cross the 2 million mark , following " Dirt Road Anthem " in 2011 ; and Clarkson 's fourth song to cross the 2 million mark following " Since U Been Gone " in 2008 , " My Life Would <unk> Without You " in 2009 , and " Stronger ( What <unk> 't Kill You ) " in 2012 . As of June 2014 , the song has sold 2 @,@ <unk> @,@ 000 copies in the US . 
