In a new interview this week, Tulisa described her fellow judge as a "beast" who would "bite your f**king head off".
“Nicole is lovely. There will be no fights between us. We’re complete opposites and she brings out the more sensitive side in me," said Tulisa, being all nice.
But she then continued: "There is a beast inside Nicole, though, if you push her. She would bite your f**king head off. That girl has got so much fire, but – unlike me – she keeps it reserved, whereas I wear my fire on the outside!”
Speaking to Cosmopolitan magazine this month, Tulisa also insisted she only wants to win if her acts are good enough.
"I know that everyone will assume I want to win again this year – especially after the year I've had – but I’m not bothered," she tells the publication.
She adds: "It’s not about me, it’s about the contestants, and I believe in righteousness. I want the right person to win, whether they are in my category or not.”
The full interview appears in the November issue of Cosmopolitan.