If This Isn't Love 
Burton Lane, 'Yip' Harburg, Finian's Rainbow, Frank Sinatra

If This Isn't Love, the whole world is crazy.
If This Isn't Love, I'm daft as a daisy!
With moons all around, and cows jumping over
There's something amiss, and I'll eat my hat if this isn't love!

    I'm feeling like the apple of William Tell;
    With this I cannot grapple because, because you're so adorable.

If This Isn't Love, then winter is summer.
If This Isn't Love, My heart needs a plumber.
I'm swingin' on stars, I'm ridin' on rainbows
I'm bustin' with bliss, and I'll kiss your hand if this isn't love!