What to wear to a concerttt ?

I really don't understand why people make such a big to-do over what to wear to a concert. Anyway, dress like you would for the summer because concerts get very hot and sweaty. Unless there's actual seating (as in it's not standing room) do not wear sandals as you probably come home with some sort of foot injury. Sneakers are your best bet. Also, if it's standing, dress comfy as you'll probably be dancing.