M&S said: "Turn heads with this glamorous top from our M&S Collection range, crafted from lightweight fabric with a hint of stretch for added comfort.
"Cut in a regular fit, it features an elegant v-neckline and long sleeves, with a hook and eye fastening for a sleek finish.
"The front is adorned with dazzling sequins, while a statement bow adds a sophisticated touch."
Dublin city centre shoppers stunned as 'snow' falls on busy street as truth behind Christmas stunt revealed
And for those looking towards New Year's Eve, the is bound to turn heads.
The mini dress is also covered in tassels, giving a 1920s flapper girl look.
The party outfits have been highlighted by the Instagram account, who, sharing a video of some of their favourite pieces, said: "Wow, the new M&S party wear range is ticking all the boxes."
M&S shoppers raced to the comments section of the video, to share their love for the range.
Christmas Fashion Tips from an Expert
CLEMMIE Fieldsend, Fashion Editor at Fabulous, has shared her top tips for looking fabulous this Christmas.
AVOID: Christmas jumpers No longer a novelty gag, they’re now gone back to being naff and have no place at a festive party. By all means, go all in for Christmas Jumper Day for Save The Children, but never wear it before or after that day.
WEAR: Burgundy You can’t escape burgundy at this time of year and it's a luxury, deep and rich colour that is a welcome break from Santa-red at Christmas. Opt for silky textures or velvet for extra style points.
AVOID: PJs The trend of feather trimmed co-ords has had its day and is so dated. Don’t pull out your hair plucked pair this year, and don’t get a new set, instead still go for the satin two-piece but just steer clear of the plumes.
WEAR: Sequin Dress Try to switch up sequins slightly by wearing them with a different texture or colour, eg a sequin skirt with a sleek knit. But when you’re really stuck on what to wear reach for the sequins, it is Christmas after all.
AVOID: Sequin blazer Nothing worse than showing up to a festive do looking like the hired entertainment. Leave the sequin blazer to magicians and Strictly judges, instead always reach for a classic tux style or velvet.
WEAR: Bling trousers Last party season embellished jeans with diamante bling had a moment, and this year they’re going to be as much of a hit. If you don’t want gemstones pinging off wherever you go then try metallic, PU trousers.
One person said: "I'm totally obsessed with the bows!"
A second person said: "It's the sequin cardigan for me!"