Queen Elizabeth II isn’t the only Brit celebrating a landmark birthday this year. Vogue UK has been celebrating their 100th anniversary with a multitude of notable festivities, including a celebrated Kate Middleton cover and a dedicated museum exhibit at The National Portrait Gallery. But what centennial is complete without a star-studded fete? Naturally the likes of Kate Moss, Kim Kardashian and Alexa Chung (who is actually a contributing editor for the magazine) attended in their finest. See the best looks here.