Hours before heading out to the Cosmopolitan #FashFest VIP Show and Party, Olivia confirmed that she is bringing out her very own clothing line with Quiz during an exclusive Facebook Live chat at Reveal HQ.
It's therefore no surprise that Olivia went straight to the high street hotspot for her gorgeous frock, which showed off just the right amount of flesh thanks to its bardot style.
The Grey Glitter Lace Bardot Dress is a steal at £34.99 and Olivia coordinated hers with a matching choker, nude sandals and a perfect plum pout.
While at the event, held at London's 1 Billingsgate, she tweeted: "Loving the @CosmopolitanUK #FashFest wearing @quizclothing."
Speaking to us about her own collection with Quiz, Olivia previously told us: "All I want to do is get my style across. I want to put me into the range as much as possible."
Watch our Facebook Live chat with Olivia here: