Rita Ora struggles to get into her taxi in a VERY tight black gown with a fishtail skirt as she heads to Vogue World in London

Pregnant Sienna Miller steals the show with her bold bump-baring look as she joins lingerie-clad Jodie Turner-Smith and sleek Rita Ora for fashion's big night out in London's West End at Vogue World Show

Kate Moss cuts a chic figure in a black jumper and trousers as she arrives at Vogue World ahead of the star-studded bash

Emily Ratjkowski wows in vintage Dior while Cara Delevingne brings her own camera to Vogue World as they lead arrivals to star-studded bash