Well, in the spirit of all things NON mathematical, I went to black eyed peas last night
They were really good.... there was no moshing occurring (g-dammit) and I didn't know a lot of their songs, and they played with faaar too many of the songs that I DID know, and did boring band bits, but.... having said that, they still shat ALL over Justin Timberlake's concert. And they cost $50 less than him.
All in all, a good show.