Lyrics I Know Why (And So Do You) - Glenn Miller and His Orchestra, Harry Warren & Mack Gordon

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

And why do I see rainbows when you're in my arms?
I know why and so do you, I know why and so do you