The I Am Cait star channelled her inner Hollywood screen siren at the star studded bash - which drew in singers Nicki Minaj and Tinashe to name but a few celeb guests - and she took the red carpet by storm in this billowing black dress.
Caitlyn drew gasps (of the good kind, duh!) as she sauntered past the paparazzi in the skin-tight number that boasted a classic sweet-heart neckline, Bardot-esque off-the-shoulder detail and an ankle-grazing fishtail hem to boot.
Wowza! Now that is what you call chic.
When it came to her make-up it was plain to see that the reality star - who was recently announced as the new face of H&M's fitness campaign - donned her very own M.A.C Lipstick in Finally Free and she offset the look with lashings of bronzer a la beauty-obsessed daughter and Lip Kit founder Kylie Jenner.
Amid slaying with her perfectly tousled waves, Caitlyn joined formula one driver Lewis Hamilton and Victoria's Secret model Karlie Kloss at the city event but it's safe to say she totally stole the show.
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