Why: You will not find a letter more contested than 'C.' Legends like Glen Campbell and Patsy Cline miss out, as do modern superstars like Kenny Chesney and artists that influenced Johnny Cash, like the Carter Family. But there will never be an artist or personality as influential as the Man in Black. His image is found somewhere in ever honky tonk across America, and his songs are amongst the first a budding guitar player tries to recreate. Perhaps only Hank Williams was more influential.

Honorable Mentions: Glen Campbell, Patsy Cline, the Carter Family, Kenny Chesney and Billy Ray Cyrus.

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