Nicole Scherzinger has revealed that she might not return to The X Factor.

The former Pussycat Doll, 34, who has two acts in the final, has given show bosses who are keen for the star to sign up for another year a headache by saying that she'd like to focus on her pop career.

She told The Sun: "I'm really glad I did the show. I don't know if I'll come back next year. End on a high, right?"

She added: "This year has changed my life. As an artist, it's put into perspective what I want, how to go about it."

But asked if she was holding out for a bumper pay rise, Nicole hinted to the newspaper that she could be open to persuasion.

"That's what I'm talking about!" she laughed.

Nicole's two acts - James Arthur and Jahmene Douglas - will battle against Christopher Maloney in this weekend's final, which will feature performances from Kylie Minogue, Rita Ora, Rihanna, One Direction and Emeli Sande.