The pregnant ex reality star turned heads when she rocked up to the star studded city bash in this traffic-stopping gothic-inspired outfit that featured a stunning crushed velvet mini dress complete with a racy lacy trim and a longline satin-style jacket that pulled it all together.
It's miles away from her failsafe pastel pieces, but we love, love love this autumn-esque look on her!
Soon to be mum-of-two Billie - who was joined by her beau Greg Shepherd - oozed fierce vibes in the head-to-toe black ensemble from her upcoming collection which boasted a cool lace-adorned choker and she walked the red carpet in a pair of strappy sandals with a killer stiletto heel.
Earlier in the day, Bil covered up her pregnant tummy in busy prints, but she had no qualms about flashing her fantastic figure in the skin-tight dress. Months gone and we're STILL a little envious of her waist!
It's just not fair, is it?
Billie showed off her stunning shorter hair which she styled into effortless waves and she was all smiles as she joined fellow In The Style gals Binky Felstead and Charlotte Crosby, also sporting ITS.
Also at the bash were Geordie Shore stars Chloe Ferry (who looked completely different!), Sophie Kasaei and Holly Hagan, not to mention Celebs Go Dating's Paisley Billings.
A stylish night all round, eh?
Earlier this year, TOWIE original Billie announced her decision to take a break from the show to focus on other things.
Speaking to Reveal at her In The Style launch in August, the stunner said, "I just feel like I have to leave some time."
She continued, "I want to start a new chapter in my life and concentrate on other things, I mean, I do want another baby [Billie is now expecting, congrats!] and that's going to take more time. For me, filming isn't a huge commitment anymore so I just felt like now is the right time."
She hasn't ruled out a return, though.
"We're all on really good terms. It's open for me to return [and] if I want to go back I can, but I'll take the time out for this year for sure."
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