Singer Brian Johnson survived a scary close call during AC/DC’s concert at Allegiant Stadium in Las Vegas on Saturday night (Aug 1.) As you can see in the video from @photomusicrock below, one of the cannons malfunctioned as it was positioned onstage. The prop slammed down and dropped a projectile which landed just inches from where Johnson was standing, causing the frontman to recoil. READ MORE: 24 of Rock's Worst Onstage InjuriesJohnson has previously spoken about the dangers of having cannons onstage. When Does AC/DC's North American Tour End?