people responsible:
People responsible for the injuries would be the band,member’s /singer because they like moving around a lot to make the stage look more full, if they have back up dancers they could be a possibility for bumping into someone or messing up the dance routine which could put them in danger . The fans could also be a possibility because I’d they throw something onto the stage or run up onto the stage they could hurt the people performing , sound engineers also could be responsible for the lighting going wrong or the sound and the same with stage organisers because if They don’t sort the stage out the right way or do something there not meant to like not put the wires out of the way or set the stage up wrong they could be putting the band members in danger .
Hazards :
The hazards in concerts/ performance are electricity , lone working , machinery, manual handling , wires , (if outdoors) weather , over crowding.
The people who organise it they need to keep on top of these hazards so nothing bad happens and it’s end up being a great concert.
Who would be harmed and how ?
The people who would mostly likely be harmed would be the band members because they are the people in the stage all the time .