And even though we're in love with her flowing metallic dress and boxy zebra clutch bag, Ralph Lauren no less, we were totally won over by her stunning make-up look. But the best part is that you can get your hands on the EXACT products to have a go yourselves!
Make-up maestro Charlotte Tilbury made the stunning Sienna Miller over for the glitzy event which saw her rock a bold red matte lip and lashings of bronzer for a sun-kissed finish.
For enviable face structure, Sienna looked to the Charlotte Tilbury Wonderglow Skin Illuminator, £38.50 which was dabbed gently along the top her cheekbones, on her cupids bow and under her brows. Kim Kardashian, eat your heart out! If you're in search of something a little more pocket friendly, look no further than the St Tropez Gold Skin Illuminator £8.40 to give your skin that red carpet sparkle.
For a faux glow, Charlotte used her Beach Stick in Ibiza, £30. To nab the look, gently swipe the stick on to areas where the sun hits naturally, paying attention to your cheekbones, the bridge of your nose and your forehead especially.
When it came to Sienna's plump pout, Charlotte had the Matte Lipstick in Red Carpet Red, £23 to hand. The trick is to apply, blot with tissue and then re-apply for a look that promises not to shift an inch.
And last but not least, Sienna's smouldering peepers weren't down to the painstaking application of false lashes or monotonous blending - oh no. Make-up genius Charlotte traced Sienna's lash line with the Colour Chameleon Colour-morphing Eye Shadow Pencil, £19. Sienna's eyelids were then gently filled in and the colour was smudged into the outer corners for a gilded effect that screamed glamour - no brushes or pots of pigment needed!
On that note, we're off to stuff our make-up bags!
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