Celebrity crib sheet: Katy Perry has spent all year in the headlines – here are the six things you need to know ⊕
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a story from The Guardian ⚠️ › International
She made a short, and much-ridiculed, trip to space. She tried to buy a house and fell foul of public opinion. And she’s found love, apparently, with Justin Trudeau. Time to get up to speed before th…