Tim in Stokely:

I think it may be the Csus tuning Mattkeen has shared in one of the above posts.

C G C G D C - Low to High. The D is tuned down from B standard, not up.

It's probably the same tuning he uses for 'One In A Million' as he does the songs back to back in concert...so I hear as I've yet had the pleasure of seeing him live.