“They are bald, blue and earless. They do not talk. They play with their food (and their paint), perform wild music on instruments of their own devising and are the centerpiece of an international entertainment empire with 550 full- and part-time employees and annual revenues of $100 million. But perhaps the most striking thing about the men of Blue Man Group … is how comprehensively they have moved from the fringes to the mainstream, and beyond.