OMG, the friggin song would never end!! :) ICP is dropping a new album on August 12th or 14th, and there are three different bonus CD's that come with each version of the album, and the one bonus CD has a song that is over an hour long and has NO chorus!! :)
There are some individual who would love to do a song with all the rappers. They include the most talented people who cannot manage to produce a song, due to different reasons like lack of resources and support.