See All The Best Celebrity Halloween Costumes
Kim Kardashian as Anna Wintour, Gaga as a ghost, Kate as Cara and loads more...
Forget Christmas, New Year or Easter - Halloween is hands-down our favourite time of the year.
Not only is it the perfect excuse to have fun in costume yourself, but you get to see how the rich and famous dress up and let their hair down too.
Heidi Klum topped her own previous efforts with an elaborate butterfly costume, while Ed Sheeran looked groovy as anything as Austin Powers.
Jonathan Ross's London home was the epicentre of celebrity costumery in the UK, with a host of famous names turning up in fancy dress for his annual shindig.
Rita Ora looked stunning as Barbie, Game Of Thrones star Natalie Dormer made a convincing Marie Antoinette and Mel B appears to have gone as - erm - Scary Spice.
Kim Kardashian must REALLY love Halloween, because one costume alone wasn't good enough for her or daughter North West.
After sharing a snap of herself as a skeleton and another of North as a skunk on Instagram, she later returned to the social networking site to share an awesome group snap.
It saw her dressed very convincingly as Vogue editor-in-chief Anna Wintour, with Nori as contributing editor Andre Talley.
The snap also included her make-up artist Joyce Bonelli as Vogue's creative director Grace Coddington and her son as veteran fashion designer Karl Lagerfeld.
But the award for effortless style goes to Lady Gaga, who must have decided to have a day off after dressing like it's Halloween every other day of the year.
She made an impromptu ghost costume out of a white tablecloth as she left a Paris restaurant - complete with holes for her eyes. And she looked brilliant of course.