Tulisa and Nicole attended the party looking very, ahem, scary in their saucy costumes. What exactly has Nic come as? Answers on a postcard.
X Factor judge Tulisa went as a vampire barmaid from days past. We think. Is that Jody Latham we see walking alongside her? The ex-Shameless actor stars in Tulisa's latest music video as her naughty boyfriend.
Keen to show off her fangs the singer did a little roar for the waiting paps.
Rylan made sure he stole back some of the attention from Tulisa with his dead American footballer outfit. If they showed that much tum, we'd watch them scrumming around a field too.
Someone didn't get the fancy dress alert! Or maybe he did? TOWIE's Harry Derbridge left Essex for a night of ghoulish fun.
We know what Rylan's X Factor mentor and judge was wearing underneath her flasher mac and it was definitely worth flashing.
This picture scares us more than Rylan's Halloween costume. Why are young blonde girls so keen on getting very, very close to James Arthur? Yes he's lovely and can sing like a dream but surely they have better things to do than hang off him? No? Oh, okay then.
Bless Lucy Spraggon for donning this rounded pumpkin outfit. It gave us a smile on this grey old morning.