Tunes worth millions

I was debating the monetary worth of the Hockey Night in Canada theme with a friend, and we got to wondering what songs would actually be worth a hypothetical very large amount of money. I picked "Danny Boy." Here’s my favourite version. Warning: violence.

www.youtube.com/http://youtube.com/watch?v=AcDAPjRvjAE

The old man’s still an artist with a Thompson.