MichaelKM: Right. That's a different song, with a different tune (a familiar one, but I forget its name) & no chorus. The version I have heard goes

Oh, my name is Diamond Lily,
I'm a whore in Piccadilly,
And my father runs a brothel in the Strand,
And my brother sells his arsehole
To the guards in Windsor Castle --
We're the finest, etc.