Lily Allen has posted a "selfie" with Labour leader Ed Miliband on her Instagram account, writing, "#lilliband lol".
Political "selfies" seem to have become increasingly popular since David Cameron's infamous shot with US President Barack Obama and Danish Prime Minister Helle Thorning-Schmidt at Nelson Mandela's memorial service.
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Authorities say Ai Weiwei failed to disclose a previous "criminal conviction" - though his supporters say he was never even charged.
The supermarket made the change after getting feedback from customers who said they felt under pressure as they finished their shop.
Harry Potter fans have been left sorely disappointed after the slightly misleading hashtag #NewHarryPotterBooks began trending on Twitter.