By STEVE MASCORD GENE SIMMONS swivels his demonic head and directs a deathly, horror movie glare towards the sound-desk. “Slow black—out!” he barks into the microphone at a hapless lighting roadie. “Yes sir,” comes the meek, intimidated response. “I understand what you’re saying.” “No,” Simmons retorts solemnly. “This is ‘what I’m saying…” The multi-millionaire bassist mimics…