Just like every other sane, average human being out there, Justin Bieber has decided that having chosen the gas mask as his latest sartorial accessory, he needs to display it in public for the world to see. So du jour, non?

Having decided to go shopping in London yesterday, instead of maybe dressing down, hiring a lookalike as a distraction, or going incognito, Bieber decided that he would wear a gasmask around his head as he wandered the London streets. This is Michael Jackson level of wacko is it not? He also decided to mark the whole affair by instagramming a picture of himself looking full-on psychotic  with the mask on in a mirror with the caption 'Mi eht tseb'. That's 'I'm the best' backwards or in tongues or Illuminati worship speak or some such. Nice to see he's developing into a stable, sound young adult.