Australia’s most volatile voice in radio has been silenced – but not without a fight.

In a dramatic escalation that has rocked the industry, Kyle Sandilands has had his contract with ARN Media Limited oficially terminated, bringing a turbulent chapter at KIIS FM to a head and casting serious doubt over the future of one of the country’s most dominant breakfast programs.

The decision follows weeks of mounting tension after Sandilands’ explosive on-air clash with long-time co-host Jackie O Henderson, a rupture that ended a 25-year partnership and triggered a chain reaction inside the network.

Now, with his 14-day suspension expired and the network pulling the trigger, Sandilands has gone on the offensive.

“ARN has just announced that they’ve terminated my contract,” he said in a defiant statement on Wednesday. “I don’t accept it.”

“My lawyers told them last week this would be invalid. And guess what? It is.”

The fallout traces back to a highly publicised February broadcast, where tensions between Sandilands and Henderson boiled over on air, a moment insiders say marked the point of no return.

Henderson’s abrupt exit from the show soon followed, leaving the flagship breakfast slot in chaos and forcing the network to install fill-in hosts while executives scrambled to contain the damage.

Sandilands, however, insists the incident was being blown out of proportion. “This is the kind of thing we’ve done a hundred times in 25 years,” he said.

Instead, he claims the network seized on the moment – not to repair the relationship, but to dismantle it. “They decided to try and burn the place down… They sacked Jackie. They suspended me. They wouldn’t even let me pick up the phone to call her or anyone else on the show.

“Then… once they’d made it impossible for the show to go on, they turn around and say, ‘You didn’t fix it. You’re fired!’”

At the centre of the dispute is a contract reportedly running through to 2034 – a lucrative long-term deal Sandilands now claims ARN is trying to escape.

“Before they suspended me, ARN said, ‘Let us handle it,’ and I listened,” he said. “In the two weeks since, I’ve done everything ARN asked.

“They didn’t want to fix this. They thought they saw a chance to get out of the contract they signed with me a year ago, and they ran with it.”

Sandilands says he apologised to Henderson and even offered to return under any conditions, including working with a different co-host.

“I said, put me back on air. I’ll work with Jackie. I’ll work with someone else. Whatever you need… Every single time – ‘no.’”

In a formal statement to the ASX, ARN Media Limited confirmed the termination, citing “serious misconduct” tied to the February 20 broadcast. The company said Sandilands had been given 14 days to remedy the breach but ultimately failed to meet the required conditions.

The network also confirmed the immediate end of the Kyle and Jackie O program – a show that has dominated ratings and defined commercial radio for years.

What happens next is likely to unfold in court. Sandilands has made it clear he has no intention of walking away quietly, setting the stage for a potentially explosive legal battle over contract rights, conduct and the true circumstances behind one of Australian media’s most high-profile breakups.

“To the people who tune in every morning… you didn’t get a say in this. Neither did I,” he said. “But my lawyers will.

“I’m not done. Not by a long way.”

For KIIS FM, the immediate challenge is rebuilding a breakfast lineup without its biggest – and most controversial – star. For Sandilands, it’s the beginning of a fight that could redefine not just his career, but the limits of power, personality and contracts in Australian media.

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