It’s official; normal people air must be too toxic for Justin Bieber, because the singer was spotted wearing his gas mask again. He first wore it out shopping in London and just recently, he was seen entering Mr. Chows covering his face paired with the same Brooklyn Nets cap. Obviously there are more appropriate situations to wear a gas mask, but he’s the Biebs and he does what he wants. But seriously, what the hell is going on? Is he having a contest with Kanye West? Or maybe he's just testing out that new new gas mask bong, because no normal person walks like a hunchback when they're sober.