The blonde beauty donned this slinky number for the glitzy bash in London and wowed the paparazzi as she sashayed down the red carpet.
Complete with mesh inserts that left very little to the imagination, as well as hundreds of dazzling black sequins, the trailing dress revealed Paris' enviable toned tum and perfect pins.
Just look at those legs!
Paris paired the sweeping number with a fierce diamante encrusted Union Jack box clutch, to show us just how much she loves spending time in the UK! The American star even took to Instagram on Tuesday (12 May) to tell us that she couldn't wait to see her Brit fans while totally nailing in-flight chic in the process.
The gorge businesswoman teamed the dazzling figure-hugging dress with her signature cascading blonde curls that were pulled back and fastened beautifully at the crown for an extra dose of glam.
We also love how she offset the charcoal hued dress with a glittering smokey eye for a smouldering look that totally ruled the red carpet.
Our favourite heiress took the opportunity to show off her brand new Limited Edition Fragrance, £40, while rubbing shoulders with the likes of singer Rebecca Ferguson and actor Richard E. Grant at the star-studded event.
"The fragrance represents me because it's sparkly and fun and it stands out like I do," the star told us over a breakfast catch-up yesterday.
Right you are, Paris!
We can't wait to see what else she gets up to on her UK tour.
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Why we want to be Paris Hilton: