I was photographing couples and groups at a recent formal event and they had a band come on; Turntable. I was really impressed with these guys; very tight and very professional.
I slipped in and took a few pictures of the band; here's one of them. The trick with these shots is not to wash the colours out with harsh flash, even though your camera will be demanding more light. People want to capture the emotion and energy of a public performance and that's what I try to do here.
If you get the chance, go and see them.