A couple of days ago (August 17) Lana Del Rey was performing in Mexico City when suddenly a huge portion of the crowd was knocked over in a bizarre domino effect “energy wave.”
What happened? People are not sure, but it probably has something to do with principles of fluid dynamics applied to a crowd setting. Once the wave gets established and stars to move, there’s no way to stop a progressive crowd collapse. And it can happen fast.
Fortunately, no one was seriously injured.