The 'Mama Do' singer looked cute as a button in a crisp white dress, which featured laser cut detailing and a flattering nipped-in waist.
The scalloped collar added a pretty twist to her prim frock, while the thigh-skimming hemline let Pixie showcase her enviable pins.
In preparation for the chilly evening, the starlet came equipped with a fluffy blue cardigan and tan leather loafers.
She added pops of colour with pale green nails and bubblegum pink lippy while flaunting oodles of fluttery lashes.
And we're loving her boho barnet too, which was adorned with tiny plaits and dainty white bows.
The event celebrated the new Gordon's gin limited edition collection in partnership with Temperley London, which sees the designer create special labels for the beverage.
Talking about her collaboration, Alice Temperley said: "It has been a lot of fun working on the 'Ten Green Bottles' collection with Gordon's. Through this brand collaboration we were able to combine our bright, decorative prints with the iconic Gordon's green bottle and I am very happy with the outcome."
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