Stepping out with her boyfriend in tow, Demi was all smiles as she wowed in an all-black ensemble at the bash.
Dressed up for their night on the town, the 'Neon Lights' singer looked super-stylish in her designer co-ords, featuring a plunging mesh crop top and matching ribbed midi skirt.
Sweeping her short dark locks over to the side, Demi made sure to stun on the beauty front too, opting for natural-looking make-up - including fluttery lashes, a hint of blusher and a nude gloss on her lips.
Totally gorgeous, right?
The 22-year-old usually remains quite coy when it comes to her love life with Wilmer, but judging by the grin on her face she was more than happy to have the That '70s Show actor by her side last night.
And making sure to look just as good as his other half, a dapper Wilmer smartened up in a teal roll neck, blazer and jeans.
The couple have been dating for a long while now, but proving she's still completely smitten, Demi has told fans she thinks Wilmer is "perfect".
When away from her beau while working, Demi has been known to open up on her romance. And while she was in the UK recently, the Disney starlet couldn't help but tell her fans she was missing her other half.
Sharing a sweet snap of Wilmer planting a kiss on her cheek, Demi said: "I never post personal pictures like this but f***.. He is perfect. I miss my @wilmervalderrama."
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