Glenn Miller, Paula Kelly - I Know Why Lyrics

Why do robins sing in December,
Long before the springtime is due?
And even though it?s snowing
Violets are growing,

I know why and so do you...
Why do breezes sigh every evening,
Whispering your name as they do?
And why have I the feeling stars are on my ceiling?

I know why and so do you...
When you smile at me
I hear gypsy violins
When you dance with me

I'm in heaven when the music begins...
I can see the sun when it's raining
Hiding every cloud from my view
And why do I see rainbows when you're in my arms?
I know why and so do you!