What do you think of this brainteaser?

[Rich7]

A man is sitting in a pub feeling rather poor. He sees the man next to him pull a wad of ?50 notes out of his wallet.
He turns to the rich man and says to him,
"I have an amazing talent: I know almost every song that has ever existed."
The rich man laughs.
The poor man says, "I am willing to bet you all the money you have in your wallet that I can sing a genuine song with a lady's name of your choice in it."
The rich man laughs again and says, "Ok how about my daughters name, Joanna Armstrong-Miller."
The rich man goes home poor. The poor man goes home rich.

What song did he sing?

Care to guess?.....

[Sunny]

I know - But I must admit that I used Google

[Karina]

Hmm..another riddle....
hhhm...
what could he sing...
sth unusual and usual at the same time

[Rich7]

Thanks Sunny for not ratting me out.

Happy birthday to you, happy birthday to you, happy birthday joanna armstrong Miller.
haha..ha ha.. what ya think?

[Sunny]

[Karina]

Ha ha ha !!
I knew it...!!!
hehehe ....goood...