See Pics From X Factor Rylan's Birthday Party
Contestants and judges dress up for Halloween-themed bash...
The birthday boy himself, who is turning 24, was dressed as a spooky American football player - while his gal pal Lucy Spraggan dressed as a pumpkin.
District 3 wore red devil costumes and Tulisa and Nicole both opted for corsets - with Nic wearing some sexy fishnets too.
James Arthur, who is apparently wanted for a duet by a pop star, appeared to be the boring one who came in normal clothes.