Stacey - who is right at the very top of the style pile at the moment - ditched the flippy hem frocks and baby pink co-ords and wore a silky white dress that boasted a bandeau neckline and an almost Christmassy faux fur trim that drew attention to her incredible legs.
Yes, we're a bit confused but she looks pretty cute, right?!
The former X Factor star proved that the underwear as outerwear trend is back with a bang and she teamed the nightie-inspired frock with a matching bolero jacket and sky-high peep-toe heels for a touch of glamour.
Mum-of-two Stacey upped the chic factor even more and clutched her failsafe Louis Vuitton bag as she posed for the paps on exit. She gave us oodles of hair envy and wore her strawberry blonde locks in effortless, beach babe waves but it was her barely there make-up that really won us over.
The starlet joined author Lady Victoria Hervey and ex-JLS star JB Gill at the swanky London bash.
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