Lyrics:

Smile, though your heart is aching
Smile, even though it's breaking
Though there are clouds in the sky
You'll get by
If you smile through your fears and sorrows
Smile and maybe tomorrow
You'll see the sun come shining through
If you just light up your face with gladness
Hide every trace of sadness
Although a tear may be ever, ever so near
That's the time you must keep on trying
Smile, what's the use of crying?
You'll find life is still worthwhile
If you'll just smile, come on and smile

If you just smile