Oh Lord, go to 29 minutes. People are trying to clear the way for an ambulance and the performer is aware of this - he even says that there's an ambulance. He's then clearly confused on what to do next, and hesitates. He can then see the ambulance as it has its lights flashing and he tells everyone to clear the middle and stop what they're doing and put their hands up. OK - that makes sense. I figured he got everyone to put their hands up in order to get them to stop what they are doing. I was wrong.
The video then becomes mind-shatteringly stupid. He says, "I'm going to make the motherfucking ground shake," and then strobe lights, flares, and other bright lights start going off and some ultra loud music starts up. I'm sure the ambulance personnel, who were trying to deal with casualties in the middle of a ridiculously dense crowd, really appreciated that.
I can't imagine trying to deal with dead or dying people, in a dense crowd, in darkness except for the strobe lights going off and near deafening, abrasive music assaulting the ears. God damn. Being a paramedic is stressful under normal circumstances. The people in the crowd also just started bobbing along with the music. Seriously, what the hell? Why wasn't the performance stopped? Apparently, staff told him to keep going. Were they afraid people would riot or what?