(Photo: Bas Rutten) It’s hard to imagine what could possibly link the divine art of classical singing with the somewhat brutal (if noble) art of professional fighting. Bas Rutten, the legendary former MMA master and pioneer, UFC world heavyweight champion and ‘Hall of Famer,’ three-time ‘King of Pancrase’ world champion, kickboxer extraordinaire, self-defense expert, stuntman and Hollywood movie star will {…}