'Unstoppable,' Rascal Flatts' fourth single off their sixth studio album, is a song about overcoming the obstacles of love. Written by Rascal Flatts' Jay DeMarcus and Lady Antebellum's Hillary Scott and James Slater -- the high energy tune is optimistic, with flairs of country pop: "You can do what you think is impossible / Keep on believing, don't give in / It'll come and make you whole again." To hear the new single, go to AOL Radio's New Country First station.
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