The pop singer posed for Instagram before heading out to the event, and expressed her exciting by captioning the image "Party time with my ladies!!!!"
Jesy opted for a can-never-go-wrong LBD, which had three quarter length sleeves; cut outs on the waist and a gold addition around the collar.
She went for 'all black everything', by styling the dress with a pair of strappy sandals and black nail polish.
To support her fiery hot outfit, Jesy topped off her look with big, brunette bouncy curls.
To complement her golden skin tone, the singer used bronze and brown smoky shades to accentuate the eyes. Her make-up was finished off with a pinky nude lipstick which looked very Kylie Jenner style; a lipstick the Reveal girls want to get their hands on!
Pixie Lott, Conor Maynard and James Arthur were also at the glitzy event, which was hosted by Labrinth.
In true girl band style, the rest of Little Mix also went for all-black statement outfits.
Perrie braved the February breeze with a sexy lace strapless crop and jeans, whilst Leigh-Anne chose a sizzling jacket and trousers suit combo with leather detail. Last but of course not least, was Jade in her black and white blazer, over the top of a polo neck dress, which she styled beautifully with long relaxed beach-type curls.
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