Within the theme songs about drinking, there is an entire sub-theme songs about moonshine. 

Drinking Song #26 is Copperhead Road by Steve Earle

Then there’s Moonshine Blues by Ma Rainey, Drinking Song #27.

http://youtu.be/sfBKKrJNbCg

Here’s Moonshiner performed by Uncle Tupelo – Drinking Song #28

Finally, here are the Osborne Brothers performing Drinking Song #29, a little ditty about Rocky Top Tennessee

And of course there are many more, to be explored later.