Lyrics: Sesame Street. Let A Frown Be Your Umbrella.

(After Farley starts to sing "Let a Smile Be Your Umbrella", Oscar interrupts, saying that it really goes like this:)

Oscar: Oh, let a frown be your umbrella on a rainy, rainy day.
And if your grouchy cries
Just tell her that a frown will always pay.
Whenever skies are gray
Don't worry or fret.
A frown will bring the raindrops and you'll always get wet.

So let a frown be your umbrella on a rainy, rainy day!

(Then, I think, Oscar asks Farley if he understands how the song goes now. Farley says, "Yeah, but I'm not sure I like it.")