What is a Baby?

What is a Baby? is a song sung by Lady in Lady and the Tramp.

Lyrics
What is a baby?

I just can't understand

It must be something wonderful

It must be something grand

'Cause everybody's smiling

In a kind and wistful way

And they haven't even noticed

That I'm around today

What is a baby, anyway?

Oh, what is a baby

I must find out today

What makes Jim Dear and Darling

Act this way.