But the design is so classic that it's super easy to find without resorting to dropping major cash for the Tom Ford original!
We found two equally affordable options that are super similar to Kate's dress.
Check 'em out ...AFTER THE JUMP!!!
The Royals singer walked the red carpet before performing at the Vevo Halloween Concert in London on Thursday, and while she didn't dress up in a costume, she was certainly in the spooky spirit!
Her all-black outfit of crop top and culottes was clearly goth-inspired, and her trench coat and platform boots only added to the effect. Not to mention her porcelain complexion standing in stark contrast to the noir ensem!
But the best part had to be her riotous curls and black-outlined white mani. It's all about the details!
[Image via AP Images.]