The best part? This is one of a few frocks from the range (which landed this week, FYI) that hasn't yet sold out completely - er, RACE YA.
The reality star turned fashion designer looked absolutely amazing as she strutted her stuff in this traffic-stopping, sequin splashed mini dress that featured a thigh-skimming hem and a choker-style neckline.
Can you believe it's only £34.99? So much sparkle!
Just when we thought the party ready look couldn't get any more eye-catching, we spotted Olivia's metallic heels. Those pointed toes could do some damage - eek!
The stunner - who left beau Alex Bowen at home in Essex - wore her tousled bob in a sky-high ponytail and dressed her pillowy pout in burgundy lipstick.
Lashings of highlighter and a power brow only added to the sassy mermaid-y vibe!
Olive - who mentioned to us that she has a v-e-r-y exciting beauty project up her sleeve (all will be revealed soon!) - was joined by pals Tina Stinnes and Katie Salmon in a gorgeously glittery maxi frock also from the Quiz line.
When they weren't Snapchatting away or treating the paparazzi to snaps, the trio sipped on cocktails and prosecco before taking to the dance floor to show off their new wardrobes. The ultimate girls' night out, right?
Elsewhere in the city, fellow islander Cara de la Hoyde rocked a bodysuit from Olivia's line to the SPORTFX bash.
Gah, we just can't get enough of 'em!
Like this? Don't miss out! Make sure you're following Reveal across Twitter @RevealMag / Facebook @Revealmagazine / Instagram @revealmagofficial