Natalia Kills begs forgiveness for X Factor 'bullying', as Louis Walsh delivers damning verdict on the rest of her career

She and husband Willy Moon were sacked from the X Factor New Zealand to comparing a contestant to a serial killer

Natalia Kills has apologised for the “dramatic” critique of an X Factor New Zealand contestant, in which she and husband Willy Moon likened him to Hitchcock serial killer Norman Bates.

“I feel like you are going to stitch someone's skin to your face and then kill everybody in the audience,” Moon told hopeful Joe Irvine following his performance of “Cry Me A River”.

Kills had labelled it “disgusting”.

Their gruesome comments led to their sacking from the show, and the scorn of peers including Ed Sheeran and Lorde.

And of invincible UK X Factor powerhouse Louis Walsh, who declared the pop singer’s career well and truly over.

X Factor judge Louis Walsh in Glasgow. (Rex Features)

“She obviously has no class, no taste, she'll never work again I reckon, honestly,” he told Irish radio station RTE2fm. “I mean, who's going to hire her? Nobody.”

Kills initially addressed the incident on Twitter, claiming she simply took the producer’s call to bring her “passion, dramatic expression and perspective” to the show too far.

Posting to the contestant directly, she added: “Joe, I hope you can forgive me and I wish you the best!” she wrote. “Be natural, unconventional and be you!”

She then addressed “the incident” in an interview with Billboard magazine, in which she self-elevated it to conspiracy theory level.

“I feel like everyone needs to put the idea of it being a manufactured conspiracy theory behind them, there's really nothing to it,” she said.

“I love my husband with all of my heart, we'll stick together no matter what. There are many sides to this story and I am not about to get an entire industry in trouble that has been going on for years and years entertaining the masses, so thank you absolutely everyone for your support.”

“The reality of ‘reality’ TV is that there's a lot the viewer doesn't see,” Moon added in a separate statement. “The show encourages judges to be forthright and highly opinionated. It went too far and I never intended to single anyone out. I wish the contestants, crew, and particularly Joe, all the best.”