[ ] Another interesting statistic

Noticing that Chick Corea and Bobby McFerrin are a surprisingly distant 5 steps apart, I got to thinking: which are the most "distant" collaborators?

It should be straightforward (if perhaps time-intensive) to calculate. It would be an interesting indication of which artists / bands which, while collaborating, are the most "unlikely", if you get me.

I found that Vassilis Tsabropoulos and John Marshall (UK) are 6 steps apart. Haven't found anything further than that.

14 steps via Peter Brötzmann of all people:
[www.bandtoband.com] http://www.bandtoband.com/link/album/jay-z/watch-the-throne/to/album/kanye-west/...

The ones posted here by Python and mikehaley are both 9 steps now (though the latter is primarily a split):
[www.bandtoband.com] http://www.bandtoband.com/forums/viewtopic.php?t=5308