The former X Factor contestant stole the show at the Bloggers Love So…? party in central London on Thursday evening (15 August).
After tweeting that she didn't know what to wear, the singer settled for this stand-out look, telling fans: "Rocking the anime look tonight! Love my purple and pink hair! Thanks @Illamasqua for the great Paranormal ideas in your pallettes!"
Kitty's look clearly went down well with fans, with one Instagramming: "You look AMAZING!" Another wrote: "Oooh my little pony hair love it."
She first showcased her colourful look last week at the West End show WAG! The Musical.
Kitty rose to fame on the eighth series of X Factor, which was eventually won by Little Mix. When Kitty was eliminated, it provided one of X Factor's most memorable moments ever: Lady Gaga, who had been the guest performer, ran on stage to comfort her and took her backstage for a chat.
X Factor's winners in pictures:
Copyright: WENN Harsha Gopal