The supermodel looked typically flawless as she arrived at the Hugo Boss Bailey Stardust opening wearing a gentleman's style grey coat and black separates.
A portrait of Kate is included in the exhibition, which is sponsored by Hugo Boss and CIROC Ultra-Premium Vodka.
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Other high-profile names to attend the party were Jenson Button, Graham Norton, Jerry Hall and Giles Deacon.
Speaking about photographing Kate and Jean Shrimpton, David told The Telegraph, "They're the most peculiar women.
"I've never understood why everybody likes them so much. There are many more beautiful girls. But they've got this universal, democratic appeal… They've just got this thing that makes them stand out."