can you meet the perfomer when they come out at the end of the night?

I agree with Palmer is kind of dificult since there is a bit of security issue on that

Yes you can them have to go by the back entrance dock you know the loading dock back there with the equipment comes in and out and they do it really on the sly but they enter and and exit out of that loading dock area look for the Silver Eagles or the Prevost buses the entertainers buses that'll give you a good idea of the exit and entrance they're using is usually closest to those buses and after the show if you really want to meet them get next to the buses you will

Doubtful but maybe if you catch them outside of the venue