Anyone up for something spontanious here?

I had an idea-
Any drummer, put down a drum track, post it.
Any Bassist, download it and put a bass line to it, post it.
Any guitarist, do the same, toss in a track, lead, wherever there is room.
Vocalists, keyboards, etc.. do the same.
See how many different improv songs we can come up with from one.
Total badass... who's in?
(I could even pull up a pre-set drum track from my machine, but thought it would be much cooler using all live people)...
Any drummer, put down a drum track, post it.
Any Bassist, download it and put a bass line to it, post it.
Any guitarist, do the same, toss in a track, lead, wherever there is room.
Vocalists, keyboards, etc.. do the same.
See how many different improv songs we can come up with from one.
Total badass... who's in?
(I could even pull up a pre-set drum track from my machine, but thought it would be much cooler using all live people)...