"From the moment we played 'Shout at the Devil,' I knew that we had made it. I had nothing to worry about. These people had never heard the song before: We had hardly even begun recording the album. But by the end, they were singing along, pumping their fists into the air. I looked out and with every word I sang, with every guitar lick Mick played, the crowd rippled in response. I understood then why rock stars have such big egos: from the stage, the world is just one faceless, shirtless, obedient mass, as far as the eye can see." 

-- Vince Neil 

http://www.youtube.com/watch?v=_lD2ew1uWYo