When it's imperative that you look like the most red-hot babe in the room, no one does it better than Blake Lively, who pulled out all the glam stops at a jewellery event for Van Cleef & Arpels in New York. The Gossip Girl star went for cascading curls (ask for a Veronica Lake-style blow out if you're making a pre-party trip to the hairdressers) and classic make-up (you can't go wrong with black eyeliner and a red lip). Her knockout dress perfectly fused sexy (sheer lace) with understated (black, midi length) and was topped off with a furry shrug. Damn girl, you good.

Learn how to dress for a party like pros Alexa Chung and Kate Moss.