I know it’s an Al Green song but I just can’t recall the title.
“I won’t let it get me down.
Turn my smile into a frown.”
Jog your memory?
Are you sure it’s by Al Green and are you sure you’ve heard the lyrics correctly?
I can almost always find songs with a Google search of just a small part of the lyrics or a small part of the lyrics combined with the singer, but with these I get nothin’.
Agreed with** Starving Artist**. I see nothing with it.
Found it! 
It is indeed Al Green. It’s called Rhymes. Found it on Amazon.
Great!
Sorry my Google-fu wasn’t up to par.