Her look was classic Kate - black skinny jeans and a black one-button blazer. She added a touch of sparkle to proceedings (perhaps inspired by the fact the hotel houses Europe's largest disco ball) with a sequinned back top.
Joining the supermodel at the party were Alexa Chung (in double denim), Boy George (acid green hat), Alice Dellal (leopard print) and Jade Jagger (gold and black prom dress).
As the hotel logo goes: "It's not about arriving - it's about making an entrance..."
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