London: Singers Katy Perry and Nicole Scherzinger are the big names in consideration to fill Kelly Rowland`s spot in `The X Factor`.
Rowland, who had been on the judges panel last season, has left the show and now the organisers are in search for a new judge, Daily Express reported.
"I`ve worked with Nicole and Katy before and I would love to work with them again, they were fantastic," said Louis Walsh.
As per the reports, five celebrities are in contention with Melanie Brown, Anastasia, current `X-factor` judge in Australia, and Sharone Osbourne who has previously been a judge on the show.
"Mel B knows the format so well... Anastasia has sold millions of records and is a big star and I would give anything to work with Sharon again," Walsh added.
Started in 2004, `X Factor` will soon go on air for its season 9.