So you've got your lacy LBD and satin glamsie all lined up, but – incoming! - there's a third weapon to add to your Christmas partywear arsenal. No longer just the 'drobe of choice for Disney princesses, Carrie Bradshaw and debutantes, the less-than-humble ballgown has been spotted on the poster for the new series of Girls (making a definite un-SATC statement), Suki Waterhouse (wearing a tasty Vivienne Westwood number in her fave colour, candyfloss pink) and any number of street-style stars. 

Now for the tricky part: how to wear one without looking like you stumbled out of The Bachelor? Easy. First up, team it with a chunky, high-heeled boot. Next, add a biker jacket. And finally, try going with just a ballgown skirt option and teaming with a crop or fitted top. See? Cool. As.

Pictured: Suki Waterhouse, Girls season three poster, street style.