Nicole Scherzinger doesn't feel threatened by Alesha Dixon filling in for her on 'The X Factor'.

Nicole Scherzinger

Nicole Scherzinger

The 'Britain's Got Talent' judge was asked to stand in for the former Pussycat Dolls singer during the audition stage of the singing contest earlier this year after another commitment took her up her time, but the American beauty isn't worried if the show boss Simon Cowell decides to replace her permanently.

She said: "Alesha's my friend, so I dig her. There was one of the auditions that Mrs O [Sharon Osbourne] couldn't make so Alesha stood in for her too, Me and Alesha were having so much fun, I don't think Simon liked that because he couldn't control us.

"Together we are trouble! Together we are double trouble, we have too much fun together. Simon tries to wind me up about everything."

And, although Simon likes to wind her up by saying he'll axe her from the judging panel, the 57-year-old music mogul has no intention of losing Nicole, 39, as she's "great TV" and a good mentor.

He explained: "The great thing about Nicole is you throw out the bait and she takes it every time! Nicole's been good this year.

"She came over to my house in LA when we were talking about her coming back and I said apart from being great on TV, what she did with James Arthur was amazing. So, as crazy as she is, when she's on it and likes someone, she's brilliant."

And that just as well, as Alesha, 38, previously said she has no intention of leaving 'BGT' in order to claim a seat on 'The X Factor'.

She said last year: "I'd be lying if I didn't say that in the past there's been times when I've considered if that would be good for me, just because I'm such a huge music fan. But I have to say the vibe of 'Britain's Got Talent' is second to none... There's just this joy about the show and I wouldn't want to lose that."