Haha, true that, they're hardly parties...more like social gatherings in which much alcohol will be consumed, and many drugs shall be taken, along with a bit of sexual innuendo. Some of the good ones are more like parties though...
The closest thing we have to that is Lyrical Challenges and that's way way way different. A bunch of random people collaborating on a song is just awful, it wouldn't work and is a bad idea.
I know for christ sakes. I've dealt with this forum a lot longer than you. Drop it.