Why: Vince Gill is a two-time CMA Entertainer of the Year winner and Country Music Hall of Famer with one of the purest voices in country music history. It's no coincidence that young stars like Kelly Clarkson and Ashley Monroe are calling him to lend a hand on their contemporary records. He's a legendary country guitarist, and for years was the social voice of country music. Perhaps most importantly, you won't find a single person willing to say a bad word about this legend.

Honorable Mentions: Vern Gosdin and Crystal Gayle.

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