It was the ultimate '90s chick flick and Cher and Dion were every girl's girl crush growing up, so naturally, Louise jumped at the chance to transform herself into the movie's leading lady for the evening.
And it's a pretty good effort too, right?
Sporting a getup Gossip Girl's Blair Waldorf would be proud of, Louise kitted herself out in a pussy-bow blouse, sleeveless knitted sweater and a head-turning canary yellow PVC skirt.
Of course, she made sure to take a leaf out of Cher's book and co-ordinate her fabulously fluffy bag to her wardrobe, finishing her look with sheer knee-high socks, a cute pair of school girl-esque heels and every '90s girl's essential... a pretty studded headband.
Louise's in-credible transformation was in aid of Walker's 'Bring It Back' themed-party. Following her evening out where she joined the likes of Joey Essex, Sarah Harding and her co-star Jess Woodley, Louise gushed she "loved" fancy dress.
Louise's appearance at the bash comes after she recently revealed she is planning to move to New York. Hoping to join her beau Alik Alfus in the US, now he has had to return home to work on the family business, Louise could be leaving SW3 in a matter of months.
During a recent episode of Made In Chelsea, she told her boyfriend: "I don't know anyone else who would have made the commitment we have to have a long-distance relationship... but I think I'll probably move to New York in December, at the end of this year."
Alik then told her he "couldn't think of any better situation", before gushing he has never loved someone the way he does Louise. Aw!
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