We have a winner in the category of the most bazaar use of music software. Songsmith is a program from Microsoft Research. You sing to the program and it creates accompaniment for what you sing. Some folks have played some well known recording into the computer to get new music for old lyrics with hilarious results.
I heard this while listening to a podcast in the Charlotte airport. I cupped my mouth with my hand and my eyes started to water until I could no longer contain myself and had to turn the Ipod off. It will be the funniest thing you hear today. Real music fans will probably barf.
So without further delay, I bring to you the Police and "Roxanne" accompanied by Microsoft Songsmith: