Current and former members of several Classic Rock mainstays are combining forces in Kings of Chaos, a super-group cooked-up by Guns N' Roses veteran Matt Sorum.  Sorum is joined by fellow Guns members Duff McKagan and Gilby Clarke, Aerosmith front man Steven Tyler, Robin Zander of Cheap Trick, ZZ Top's Billy Gibbons and Extreme's Nuno Bettencourt.  Eager to see them live?  You'll have to travel to South Africa, according to Sorum. Speaking at a pre-tour media event Sorum said, 'You will never see this concert in the UK or the US. This is a unique experience, just for South Africa'.  Tyler and Bettencourt did offer-up an impromptu version of the Extreme hit More Than Words during the media session.