I think this is what you are looking for:

"This delightful homiletic was written and composed by West Virginia musician and preacher Blind Alfred Reed and recorded by him in 1927 (Victor 21360); it was so successful that he followed it with 'Why Do You Bob Your Hair, Girls, No. 2" (Victor 40196), recorded in 1929.... Ozark recordings Laura Wasson (AFS 5392 B2*), Ollie Gilbert (MFH 914).


WHY DO YOU BOB YOUR HAIR GIRLS?
Blind Alfred Reed, Victor V-21360, issued 1927.

Why do you bob your hair, girls? You're doing mighty wrong.
God says it is a glory and you should wear it long.
You spoil your lovely hair, girls, to keep yourself in style.
Before you bob you hair, girls, just stop and think a while.

Why do you bob your hair, girls? It is an awful shame
To rob the head God gave you and bear the flapper's name.
You're taking off your cov'ring. It is an awful sin.
Don't never bob your hair, girls. Short hair belongs to men.

Why do you bob you hair, girls? It does not look so nice.
It's just to keep in fashion. 'Tis not the Lord's advice.
And every time you bob it, you're breaking God's command.
You cannot bob your hair, girls, and reach the Glory Land.

Why do you bob you hair, girls? It's not the thing to do.
Just wear it, always wear it, and to the Lord be true.
And when before the judgment, you meet your Lord up there,
He'll say, "Well done! For one thing, you've never bobbed your hair."