It's sort of a feeling of power onstage. It's really the ability to make people smile, or just to turn them one way or another for that duration of time, and for it to have some effect later on. I don't really think it's power... it's the goodness.
I think Led Zeppelin must have worn some of the most peculiar clothing that men had ever been seen to wear without cracking a smile.
Whenever I have bid a hasty goodbye to a loved one, I've always made sure that my record collection was safely stored away in the boot of the car.