The pop starlets joined bandmate Rochelle Humes and her hubby Marvin for a swanky dinner at Hakkasan restaurant.
It seems Mols was super-excited for her evening feast, tweeting: "Can't wait for dinner tonight! I hear the food is meant to be scrumptious!! Bring it on baby!!! #PrawnCracker."
The blonde bombshell turned heads in a plunging blue frock which featured a pleated mint skirt.
And while Mollie's dress had all the ingredients for a style winner, the odd tan panel running around her stomach let it down. Not to mention those bizarre scallop edge hip details!
Meanwhile, Vanessa opted for a futuristic look with a silver bodycon skirt and scraped-back top knot.
She added a plain grey cami and ankle strap heels, whilst toting a leather Balenciaga handbag.
And while we like her silk scarf, we're not loving it paired with this outfit.
Bring back the chic leather skirt and cute denim shorts, we say!
What do you think of Mollie and Vanessa's outfits? Let us know by commenting below as the best comment across the site each week wins £50!
Watch The Saturdays' music video for 'Gentleman' below: