Writer(s): Gus Kahn/Walter Donaldson (first words replaced by trumpet notes) ***, that's my baby No sir, I don't mean maybe Yes sir, that's my baby now Yes, ma'm, we've decided No ma'm, we ain't gonna hide it Yes, ma'm, 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 (instrumental interlude) By the way, by the way When we run into the preacher I'll say I'll say yes sir, that's my baby No sir, I don't mean maybe Yes sir, that's my baby now Mmm