The trio joined fellow famous faces including Alexa Chung, Holly Valance, Sophie Ellis-Bextor and Kate Bosworth, to watch shows including Mark Fast and Burberry.
An excited Nicola Roberts tweeted her delight at meeting West, telling her followers: "My obsession with Kanye just hit a new high after meeting him at the Mark Fast show. I really love him."
> London Fashion Week: Burberry Prorsum A/W 2012 Womenswear show
See more of the celebrities at London Fashion Week in our gallery below: