Dexter Roberts trains dogs to hunt ducks. He sang a song by American Idol's own Casey James while playing the guitar. Keith could hear the bluegrass elements of his voice, and Harry called Dexter "authentic." With that, Dexter is riding off to Hollywood.

Dexter Roberts trains dogs to hunt ducks. He sang a song by American Idol's own Casey James while playing the guitar. Keith could hear the bluegrass elements of his voice, and Harry called Dexter "authentic." With that, Dexter is riding off to Hollywood.

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