Big hair at gigs

Burn them.

Whatever they use to get that ridiculously big hair that big must be flammable.

They're always 6'9" tall, they've always got hair that's taller than the North face of the Eiger, and they're always stood in front of you. In fact, most of them are quite near the front, despite their ability to see everything perfectly well from the back.

What's the solution? Set their hair on fire. Burn their obstructive locks. They'll soon move out of the way.

What could possibly go wrong?