‘I couldn’t see, breathe or sing. I blacked out twice’: why are so many metal bands wearing masks?

From Sleep Token to Ghost and Slaughter to Prevail, the genre’s biggest stars are using freaky facial disguises. Are they hiding behind them – or revealing their true nature?When US avant garde metal band Imperial Triumphant decided that their image needed a shake-up in 2015, they considered putting on corpse paint, the ghastly makeup popularised by 90s black metal. But, their singer/guitarist Zachary Ezrin says, they then realised how much effort it would take – and how uncool the post-gig ritu...