I like it when they generate some smoke anf light it with different coloured spots. Really does make the backgroun for a lot of these images. Maybe you've noticed in the last few posts, this band did that a lot.

I do believe that they are now using LED lighting for these concerts. I think I've posted an image or two showing this. Three advantages to these LED lights I can think of right now are: 1. Less heat being generated, if any. 2. These LED light can be bought with the exact Kelvin temperature you require. If you want daylight white balance you buy the ones with a temperature of 5500 Kelvin. 3. Cost. By that I mean you require a lot less electricity to supply these. That in my books is good for the globe that we live on.