Just let a smile be your umbrella, On a rainy, rainy day . . . And if your sweetie cries, just tell her, That a smile will always pay . . . Whenever skies are gray, Don't you worry or fret, A smile will bring the sunshine, And you'll never get wet! So, let a smile be your umbrella, On a rainy, rainy day . . . Just let a smile be your umbrella, On a rainy, rainy day . . . And if your sweetie cries, just tell her, That a smile will always pay . . . Whenever skies are gray, Don't worry or fret, A smile will bring the sunshine, And you'll never get wet! So, let a smile be your umbrella, On a rainy, rainy day . . . Just let a smile be your umbrella, On a rainy, rainy day . . . On a rainy, rainy day . . . On a rainy, rainy day . . . Music by Sammy Fain with lyrics by Irving Kahal and Francis Wheeler , 1928