Lyrics Talk:Don't Let's Start
"that you're my precious little girl" doesn't make any sense in this context. I do not know where the person who created this page got the lyrics - maybe they heard it by ear, maybe they're the official lyrics, but if they are you may change them back. I will be changing the words here to "You were my precious little girl" because of the context.
"Could believe for all the world that you were my precious little girl" makes much more sense.