It's not really much of a revelation, but Thurston Moore thinks older rock stars beat the pants off young pop stars:
"If that's the young generation in the culture, then forget it. In the underground, the old guys are cool. I like the fact that the older we get the more we can rock."
There's a pretty strong argument that would suggest that Yoko Ono and Avril Lavigne both rock about precisely the same amount that we could advance here, but we're choosing not to.