The fire was caused Causation by pyrotechnics set off Placing by the tour manager of the evening 's headlining band , Great White , which ignited Causation flammable acoustic foam in the walls and ceilings surrounding Surrounding the stage .

Ten instrumentalists , three harmony vocalists and ten dancers backed Knowles onstage which also had disco balls hanging from the ceilings and color-changing stairs .

Around 30 requests Request for help Assistance were made Action to the SES , mainly due Causation to cracked Destroying walls and ceilings , and a number of local businesses lost Earnings_and_losses some stock .