To be headless

I saw a band play last night.. they were very good. The singer was confident and would leave the stage to go to the bar in the middle of a song when the band was doing an instrumental. As soon as she left the stage I got the feeling that the act, which I had been quite into, wasn’t as good anymore, even though she wasn’t participation the music when she left the stage.

Is there some thing in us that needs this figure head to always be present? What ramifications does it have for other group processes where there isn’t a need for a leader, a one? Maybe these don’t really exist.