Musical Numbers, Dreamed 6-7-10

I was watching a performance taking place in a huge glass enclosed auditorium. It wasn't quite like a normal auditorium, there were no seats for the audience, just a big glass wall to look through. The performers were stacked in rows that were vertically arranged, attached to the back wall. They were either puppets or children dressed like puppets. There were also infants placed on the ground wearing the same sort of outfits. It was understood that the infants had been recruited to be in the troupe when they were old enough. They performed a few songs but the only one I remembered was "I'm Too Sexy" by Right Said Fred. Later on in the dream another group of people played a large instrumental number in the same place. The performers were all humans and all dressed in white.