Fortnite event concert?

Can someone please explain the process to me.
I know you have to go to Sandy's stage and there it is. Are the weapons on or off. How does it work?

So Epic always keeps the exact process secret, but there are often leaks from some Dataminers. On the Internet you can find out when the concert is taking place and where you have to go. Typically, an LTM for this mode comes out a few minutes before the live event, which works like group wedges at first, but then weapons and building are disabled a few minutes before the start so everyone can watch it in peace.

Hope I could help you

Yes, I think about the bean at dandy