The former Made In Chelsea star took to Instagram to share her outfit with fans, captioning the image: "#ootd Miss Selfridge coat, Zara shirt, J Brand jeans." Good choices, Millie, Zara and Miss Selfridge are some of our favourites, too.
Millie looked effortlessly chic, teaming a pair of black skinny jeans with a patterned shirt and a cosy looking red coat. The ensemble worked perfectly with her fab floppy hat and black handbag.
Millie, who spoke out this week about how she and Professor Green got together, is also gearing up for London Fashion Week, which starts this Friday (14 February) and was choosing outfits for the upcoming shows and parties.
The stylish star uploaded a snap of a whole rack of gorgeous clothes to choose from, adding the caption: "Finding outfits for fashion week! #dreamday #lfw." What a tough life!
We spy some gorgeous gowns and embellished tops there – lucky you, Mills! If you ever need help picking from all those beautiful pieces, just give us a shout.
Failing that, we'll be keeping our eyes peeled for Millie's outfits at London Fashion Week. Judging by this selection, they're bound to be good!
What are your favourite high street stores? Let us know below, as the best comment from across the website each week wins £50!