Jackie O reveals how her dispute with Kyle Sandilands began: Read the 'degrading' comments, explosive texts to her bosses - as she lays bare her fury over ARN's 'misleading and deceptive' statement

Jackie 'O' Henderson was complaining about former co-host Kyle Sandilands to their KIIS radio bosses six months before their relationship blew up in the middle of a live show, court documents say.

The revelation was laid bare in a statement of claim filed on Henderson's behalf in the Federal Court amid her civil case against KIIS-owner ARN Media over the termination of her $100million contract.

ARN axed the record-breaking deal with the radio duo after a segment on the Kyle and Jackie O Show on February 20 where Sandilands slammed Henderson for her 'fixation' on astrology. 

Henderson said 'that's not fair' and left the studio in tears, before ARN ripped up their combined $200million agreement. Sandilands is suing the broadcaster separately over different grounds.

According to the court documents, obtained by the Daily Mail, Henderson started speaking with the head of KIIS network Derek Bargwanna and executive producer Natalie Penfold about Sandilands' behaviour in mid-2025.

The complaints began on August 20 when Sandilands referred to Henderson's 'psycho babble' and 'weird psychological bulls**t' and allegedly attacked her personal life during a live broadcast.

During that broadcast, he said 'I am worried about you ... that you'll never find anyone', 'your real is not everyone's real', and 'why don't you just get rid of all of this rubbish that you've learnt…and go out and date and let everyone be free'.

He also referred to her 'period time'. 

Henderson briefly left the live broadcast following those comments, before Mr Bargwanna and Ms Penfold went to see her about Sandilands' comments.

The co-hosts had an argument on air three weeks later, on September 10, but Henderson claims Sandilands' comments were censored out.

At 6.23am that morning, Henderson texted Mr Bargwanna, saying 'I will not be spoken to the way I was (particularly off air)...'

Almost two hours later, Mr Bargwanna texted Henderson to say Sandilands wanted to share his weight loss success with her.

The message read: 'Kyle is going to try and call you on air to share good news he lost weight. he wants to be your friend again etc.'

The following day, on September 11, Mr Bargwanna texted Henderson again, saying 'all ok today?'.

Henderson replied, telling Mr Bargwanna that female listeners were complaining about Sandilands' behaviour and calling their on-air relationship 'abusive'.

She also asked that ARN chairman Hamish McLennan and managing director Ciaran Davis be made aware of the situation.

'Yeah it’s fine today. But let’s make sure Hamish [McLennan] and Ciaran [Davis] start to think about how to address this,' she told Mr Bargwanna. 

'We are getting a lot of complaints from listeners, calling it an abusive relationship, women especially. I can send you though some [of] the examples.'

In his response, Mr Bargwanna said he had two conversations about the issue with Mr McLennan and Mr Davis.

Their relationship broke down during their final broadcast on February 20, when Sandilands said Henderson's 'fixation' on astrology made her 'almost unworkable' - to the point where she left the studio in tears.

Sandilands then said: 'You can't start crying about it, it's not that big a deal.'

According to the court documents, the broadcaster did not attempt to intervene or stop Sandilands.

The following day, on February 21, Henderson texted CEO Michael Stephenson and chief content officer Kerri Elstub, saying Sandilands' conduct was 'unfair, inappropriate and completely unprovoked'.

She also asked whether anything had been put in place 'around boundaries and expectations moving forward'.

On February 26, Henderson's lawyers wrote a letter of complaint to CBC and ARN, explaining that their client had notified them about 'bullying' by Sandilands and accused them of failing to provide a safe work space.

The letter said Henderson 'could not continue to work with Mr Sandilands', but that she was willing to continue her contract with a different show.

She had wanted CBC to propose an alternative to the Kyle and Jackie O Show. 

Henderson is alleging the termination of her contract was a breach of the Fair Work Act, and is claiming compensation of at least $82.25million.

She is also seeking payment of a pecuniary penalty plus interest and costs.

This is a breaking news story. It will be updated with more information shortly.