The 'DNA' singers joined the likes of Rita Ora, Cheryl Fernandez-Versini and Ariana Grande on the red carpet at the lavish do, and certainly stole the spotlight with their fab outfits...
Jade Thirlwall opted for an androgynous look by rocking an oversized black suit with white racer stripes running up the sides (her blazer, £120, and trousers, £90, are both from Topshop Boutique), adding a feminine touch with nude pointed courts, dainty gold jewellery and a ladylike half-up, half-down hairdo.
Meanwhile, Leigh-Anne Pinnock teamed her little black playsuit with a floral crochet jacket, both designed by Jean-Pierre Braganza, while slicking her locks into a low-slung side ponytail. But the main attraction of her outfit had to be her shoes, which featured pointed toes and criss-cross laces running all the way up to her ankles. Nice!
Blonde bombshell Perrie Edwards went for a boho vibe in her floaty dress which was covered in delicate floral embroidery, topping her pins with strappy silver sandals to reveal her striking white pedi and finishing her looks with a girly bun hairdo.
Last but not least, Jesy Nelson kept things chic and sophisticated in a smouldering black maxi dress with a daring thigh-high slit, adding a berry red manicure, heaps of dramatic smoky black eyeshadow and towering platform heels.
And it sounds like the girls had a great time at the event, taking to Twitter to write: "Thank you @BBCR1 teen awards for having us! It's been an amazing day now time to chill! Xxx."
Whose outfit do you like best? Let us know by commenting below as the best comment across the site each week wins £50!
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Watch Little Mix's video for 'DNA' below: