The reality beauty turned fashion designer looked breathtakingly beautiful as she slipped into this bloom-adorned, plunging number, showing off her catwalk-worthy figure and killer tan in the process.
Oh, HELLO, cleavage.
Thankfully, Millie managed to avoid an embarrassing wardrobe malfunction and she channeled ethereal vibes in the satin baby blue number that boasted a floor-sweeping hem and cut-out halter-neck detail. She teamed the lovely look with a pair of barely there nude sandals a la Kim Kardashian.
The stunner posed up a storm in the backless gown and wore her honey-hued lengths in a simple side parting as not to detract from the frock's rather racy neckline!
Millie - who recently divorced from husband of two years, Professor Green (real name Stephen Manderson) - joined MIC regular Rosie Fortescue at the star studded city bash.
At the time of Millie and Professor Green's split, the pair insisted it had been a "mutual decision." They released a joint statement which read: "It is with sadness and regret that we confirm our separation.
"It is a mutual decision. We still care deeply about each other and would like it to be known it is on amicable terms and we wish each other well."
Since then, Millie has been pictured kissing ex-Made In Chelsea star Hugo Taylor confirming their romance.
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