In the song greasy grit gravy and gizzard greens, who are the people singing in the song.?

in the song greasy grit gravey and gizzard greens who sings in the song. I know willie nelson and waylon jennings and shel silverstein and bobby bare but who are the other people. Like the person that sings the verse dixie belle is southern fried she dont want no champagne wine. Who is that person.