Theirs is one of the most anticipated Christmas adverts each year - and fans have finally been given a sneak peek at Marks and Spencer's 2018 offering.

This year the advert has a cheeky tone, with star Holly Willoughby diving under a Christmas tree in a rather short skirt!

The I'm A Celebrity... Get Me Out Of Here host is seen bending down to turn the tree lights on when her tartan mini-skirt rides dangerously high.

Needless to say, fans are already dying to get their hands on the a-line mini-skirt and the yellow cable knit jumper she models.

Brand ambassador Holly is the star of this year's advert (
Image:
Instagram)
And so is her short skirt (
Image:
Instagram)

"Already want that skirt she’s wearing," commented one, while another revealed she'd already nabbed the ensemble this weekend just gone.

"Oh my goodness Holly you look fab!" gushed another, although others weren't too sure and accused her of looking 'frumpy'.

She bends over to turn the tree lights on (
Image:
Instagram)

"It’s nothing spectacular, quite nice but not sure about the sleeves if they’re really baggy..." observed one.

"Why of why put the gorgeous Holly into this frumpy outfit, the skirt is oh so bad," added a second.

The full advert will drop tomorrow, and also features the talents of Dame Helen Mirren and Take That.