Pardon me for stating the obvious choice!
I usually am just a part-time lurker but after waiting awhile for this obvious choice (to me) I thought I'd share a little country music info about the Greatest Country Music Song, courtesy of Wikipedia and many other "shit-kickers" around (like me).
From Wiki.:
"You Never Even Called Me by My Name" is most notable for its satirical final verse, preceded by a recitation in which singer David Allen Coe explains that "a friend of mine named Steve Goodman" wrote the song and considered it "the perfect country and western song." However, Coe told him that it was not the perfect country song because it "hadn't said anything at all about mama, or trains, or trucks, or prison, or getting drunk." Goodman then proceeded to add the final verse, incorporating all five of Coe's requirements but completely unrelated to the rest of the song ("I was drunk, the day my Mama got out of prison/And I went out to pick her up in the rain/But, before I could get to the station in the pick-up truck/She got runned over[sic] by a damned ol' train"), whereupon Coe agreed that now it was "the perfect country-and-western song.
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