If you watched "Euphoria" — and, let's face it: who didn't? — this trend is for you. Plus, tinsel hair works just as well for festive season as it does for festivAL season. Like @_charlotte.calvert , simply tie strands of the sparkly stuff into your hair for a chic way of adding hints of glitz and glamour. Try the Amazon Hair Extensions (£10.59), which come in lots of colour options, and add as much or as little as you like.