Who's that coming down the street?
Who's that looking so petite?
Who's that coming down to meet me here?
Who's that you know who I mean,
Sweetest "who" you've ever seen,
I could tell her miles away from here.

Yes sir, that's my baby
No sir, I don't mean maybe
Yes sir, that's my baby now

Yes, ma'am, we've decided
No ma'am, we ain't gonna hide it
Yes, ma'am, you're invited now

By the way, by the way
When we walk up to the preacher I'll say

Yes sir, that's my baby
No sir, I don't mean maybe
Yes sir, that's my baby now

Who's the "who" I rave about?
Who do I feel blue without,
In the winter, summer, spring and fall?
What was I just "gonna" say,
I forget, but anyway,
Here's the most important thing of all.

Chorus
Yes, sir, that's my baby,
No, sir, don't mean "maybe,"
Yes, sir, that's my baby now.

Well, well, "lookit" that baby,
Do tell, don't say "maybe,"
Nell's bells won't she cause some row.
Pretty soon,
Pretty soon,
We will hear that Lohengrin tune,
Who for should she be sir,
No one else but me sir,
Yes sir, that's my baby now.