Eddy Arnold: Originally influenced by country's western wing and cowboy troubadours like Gene Autry, Eddy Arnold blurred the frontiers between pop and "hillbilly" music to become the most successful country star of the 20th century. His penchant for understated suits instead of Stetsons and boots underscored his urbane appeal, which extended over hit singles from the late '40s into the '70s.

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