The Human Rights Commissioner has waded into the controversy over X Factor judge Natalia Kills' shock tirade.

Kills, along with her husband and fellow X Factor judge Willy Moon, have been axed from the show.

It comes after Kills was blasted by an All Black, a news presenter, a former X Factor contestant and multiple radio hosts for her treatment of Joe Irvine during X Factor's first live show last night.

On the show Kills told Irvine: "I am disgusted at how much you have copied my husband. From the hair to the suit, do you not have any value or respect for originality?

Human Rights Commissioner Dame Susan Devoy says bullying is never acceptable even on reality TV.

"Whether we're at work, at school or on stage at an X Factor talent show: bullying isn't acceptable," says Dame Susan.

"I'm glad to see Mediaworks decided to not be a bystander and to publicly condemn bullying abuse."

Kills was blasted by an All Black, a news presenter, a former X Factor contestant and multiple radio hosts for her treatment of Irvine during X Factor's first live show last night.

On the show Kills told Irvine: "I am disgusted at how much you have copied my husband. From the hair to the suit, do you not have any value or respect for originality?

"It's disgusting, you make me sick, it's absolutely disgusting, you have no identity, I can't stand it, I'm ashamed to be here," she ranted while sitting next to fellow judge and husband Willy Moon.

MediaWorks chief executive Mark Weldon says the comments were "completely unacceptable".

"While the judges on X Factor are expected to provide critiques of performances, we will not tolerate such destructive tirades from any of the judges.

"We no longer have confidence that Kills and Moon are the right people to perform the role of The X Factor judges, and they will leave the show, effective immediately."

The X Factor NZ Executive Producer, Andrew Szusterman, says tonight's show will be judged by Stan Walker and Mel Blatt, and two new judges will be announced before next week's show.

Today, Kills faced a social media backlash for her controversial comments, with global media asking if she is "the nastiest X Factor judge ever?"

A Facebook page calling for the sacking of an X Factor judge has grossed more than 44,000 likes and counting following the vicious tirade at a contestant last night.

Earlier All Black Israel Dagg weighed in.

Those comments were inappropriate and disgraceful.. #xfactornz — Israel Akuhata Dagg (@izzy_dagg) March 15, 2015

As did TV 3 news presenter Hilary Barry.

Shame on you Natalia. Shame on you. #xfactornz — Hilary Barry (@Hilary_Barry) March 15, 2015

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Today, Irvine has taken the comments in his stride, quoting lyrics from the song 'Magic'.

In the words of Lili last night why you gotta be so rude don't you know I'm human too pic.twitter.com/a5e9iat6qW — joe irvine (@jooe63_joe) March 15, 2015

Kills took to Twitter to thank her followers for their support following the backlash.

I love you guys, thanks for your support & understanding my passionate opinions! You know what they say about me... https://t.co/DNBksvmYWM — NATALIA KILLS (@NataliaKills) March 15, 2015