The 'Disco Love' singers pulled out all the fashion stops as they performed at the Poppy Appeal Launch in London yesterday (24 October).
The gig was held for those with loved ones in the Armed Forces and the girls seemed thrilled to be supporting the cause, with Mollie King tweeting: "So excited for the @PoppyLegion launch tonight! Such an honour to be here!"
The blonde starlet - who was recently signed by Next Model Management - flaunted her toned midriff in a black crop top and a colourful high-waisted skirt by Christopher Kane.
We're used to seeing Mols with tousled locks, but this time she opted for a straight and sleek 'do paired with kohl-rimmed eyes.
Una Foden (née Healy) went matchy matchy by sporting a skirt by the same designer, while upping the va-va-voom with a racy PVC bralet, £25 from Topshop.
She teetered along in mesh peep-toe boots and styled her fiery mane in loose curls.
Rochelle Humes wore the same print on her T-shirt, which she tucked into a vinyl pencil skirt, £38 from Topshop.
The yummy mummy kept the rest of her look simple, donning classic pointed courts and large hoop earrings.
Meanwhile, Vanessa White skipped the vibrant print and opted for double PVC instead. She rocked a shiny skirt and matching crop top before adding a pair of eye-wateringly high platform heels.
The starlet scooped her brunette tresses into a chic updo, completing her look with smoky eyes and a pared-back glossy pout.
Whose outfit do you prefer? Let us know by commenting below as the best comment across the site each week wins £50!
Watch Saturdays' video for 'Disco Love':