Tripod probably won't get through security/it is too bulky anyway. I would say don't forget to spot meter off the face of the singer/band and get a good exposure setting and leave it in manual, adjusting here and there. If you let it autoexpose, even in spot-meter, there is a high probability that it might get confused and the large amounts of black from the night will cause it to try and over-expose.
Change will not come if we wait for some other person or some other time. We are the ones we've been waiting for. We are