I took my kids to their first concert to see the blue men, and it was a blast. Yes they are kind of a novelty act -- they do tv ads and guest appearances, but they are a real band with CDs. They do unusual percussion on instruments made of found materials, backed up by a good rock band. There is also a lot of visual art way beyond the light shows of my old concert going days. Plus their roots of mime and clowning. They started out as street buskers/clowns. They figured out that since they were anonymous, they could have interchangeable players, rather like a franchise, hence their ability to have an ongoing vegas show while world touring. Google their site.