one shoulder black cocktail dress KissProm Sparkly Bodycon Sequin Star Mini Party Dresses, Black / 4 this dress is perfect for both formal occasions and casual chic events First Impressions One Shoulder Midi

You can wear a pair of white sneakers to round off your casual-chic look

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Pair it with gloves to level up the dont mess with me vibe

Unless you are wearing a double-breasted evening jacket (which should most properly remain buttoned all night), you must wear either a formal evening waistcoat, made of black fabric and cut with a lowered buttoning stance, or a cummerbund, which, since the middle of the 20th century, has been the preferred Black Tie waist covering

If you dont know anyone going, get a hold of the guest list, thatll give you some insights on how to interpret the black-tie dress code