Not-so-Little Mix! Sassy girl group prove they're all grown up as they wow in form-fitting gowns at the BRIT Awards 2015

They have been spotted enjoying the shows and after parties at London Fashion Week but it was back to the music for Little Mix on Wednesday evening.

The sassy girl group put on an eye-catching sartorial display as they descended upon London’s 02 arena along with a host of other famous names.

Proving that they had picked up a tip or two from LFW, each starlet showed off their individual styles in stunning ensembles.

Little Minxes: Little Mix put on an eye-catching sartorial display as they descended upon London’s 02 arena along with a host of other famous names for the 2015 BRIT Awards

There can be no doubt that the young girl who became the first group to win The X Factor in 2011 are all grown up as they wowed on the red carpet.

Perrie Edwards opted for a classic strapless black gown but added a hint of edge thanks to the velvet material.

The 21-year-old wore her blonde locks in a tight up-do while she drew attention to her eyes with smokey make-up.

All grown up! Little Mix look sophisticated at Brit Awards

The WOW factor: Proving that they had picked up a tip or two from LFW, each starlet showed off their individual styles in stunning ensembles 

Leigh-Anne Pinnock was the golden girl in a form-fitting semi-sheer gown which featured a fish tail skirt which black beaded detail.

The 23-year-old highlighted her beauty with flawlessly applied make-up while she also wore her hair tied back into tight bun.

Meanwhile, Jade Thirlwall went for a slightly racier look as she sported a black and white dress which featured a daring cut-out in the halter neck top.

Working the carpet: There can be no doubt that the young girl who became the first group to win The X Factor in 2011 are all grown up as they wowed on the red carpet

Fun times: They have been spotted enjoying the shows and after parties at London Fashion Week but it was back to the music for Little Mix on Wednesday evening

The 22-year-old covered up her legs with a full black skirt as she drew attention to her beauty with smokey eyes and her half up-do.

But it was Jesy Nelson that drew the most attention in a sensational red dress which flattered her curves perfectly.

The 23-year-old channeled Jessica Rabbit sex appeal in the plunging strapless gown while she completed the look with red lipstick and wore her dark locks over her left shoulder.