Irving Berlin (1926) (Nancy Evans version 1946?)
https://en.wikipedia.org/wiki/Blue_Skies_(Irving_Berlin_song)
Never saw the sun shining so
Never saw things going so right
Noticing the days hurrying by
When you're in love, my how they
I was blue, just as blue as I could be
Ev'ry day was a cloudy day for me
Then good luck came a-knocking at my door
Skies were gray but they're not gray anymore
I should care if the wind blows east or west
I should fret if the worst looks like the best
I should mind if they say it can't be true
I should smile, that's exactly what I do