Some might find it surprising that a committed rock fan like me would be an admirer of the man who many consider to be the greatest CW artist ever. Talent is talent, no matter what the genre.
And I have known quite a few other rockers who were also fans of Cash. He had a deep-blues style of singing and playing that transcended style and substance. Listen to him sing 'Ring of Fire'
Cash was married to June Carter, an outstanding singer and writer herself, who came from the Carter family that had popularized Country music decades earlier. Yet Cash was far too versatile to fit neatly into just one style of music. Listen to his cover of Depeche Mode's 'Personal Jesus'