Sure, the former Made in Chelsea star nailed it at London Fashion Week, but this Nicholas Oakwell Couture ensemble really is something else!
Mills made the most of her supermodel-esque figure and went all out in this spangly floor length gown which was splashed with silver glitter and a heavy helping of dazzling diamantes.
The reality babe who recently launched her very own book, stole the show in the trailing dress which boasted a very elegant high-neck detail, sheer sleeves and a metallic waist cinching belt for extra pizazz.
Millie absolutely aced the ethereal, outdoorsy look when it came to her hair and make-up, having pulled her honey-hued locks into a chic chignon bun, dusted her cheeks with a peachy-toned blush and swiped her lips with an extra shiny gloss.
The addition of a smokey eye and a pair of sparkly drop earrings meant that Ms. Mackintosh shot straight to the top of the style pile. In fact, we're finding it really difficult to tear our eyes away from her.
Girl crush X 100000.
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