Though it hasn’t been confirmed, it looks likely that Britney Spears will be joining the ‘X Factor’ judging panel, but there’s still one spot up for grabs. Now, reports claim that it could be filled by Demi Lovato or Miley Cyrus. The Hollywood Reporter said Lovato is in “final negotiations” to fill the vacant judges’ slot on the Fox singing competition, which currently features Simon Cowell, L.A. Reid and possibly Spears. The trade publication said the show wanted to hire a brunette. Meanwhile, a source said “there have been talks with Miley” about joining the show. Others on the shortlist reportedly include Black Eyed Peas front woman Fergie and Avril Lavigne.