I found the song and transcribed it the best I could.

Shine Shave Shower
(Lefty Frizzell)

Oh it's Saturday
Yes it's Saturday
Gonna shine shave shower and brush my teeth
Go out and dance and forget my grief
Make all the night clubs in this town
Cause my sweet baby is gonna show me around
We'll go here and there and everywhere
Where we go I just don't care
We'll do the town up and we'll do it right
Because tonight is Saturday night
Who cares if talk gets around
Just cause I'm sly and not so meek
Saturday don't comes but once a week
I'm gonna shine shave shower and brush my teeth
Go out and dance forget my grief
Make all the night clubs in this town
Cause my sweet baby is gonna show me around

Gonna shine shave shower and brush my teeth
Go out and dance and forget my grief
Make all the night clubs in this town
Cause my sweet baby is gonna show me around

We'll go here and there and everywhere
Where we go I just don't care
We'll do the town up and we'll do it right
Because tonight is Saturday night

Daylight will catch me going strong
One only lives once in a life
And I don't have a nagging wife

Gonna shine shave shower and brush my teeth
Go out and dance and forget my grief
Make all the night clubs in this town
Cause my sweet baby is gonna show me around

Gonna shine shave shower and shampoo
Go out and dance the whole night through
I'll swing it left and I'll swing it right
Because tonight is Saturday night