Kyle Sandilands’ explosive off-air tirade revealed

Shock new details have emerged about the explosive fallout between radio king and his longtime co-host , with court documents alleging he told her to 'get your f***ing s**t together' or 'don't f***ing bother coming back'.

The alleged outburst took place during a fiery off‑air clash months before the pair's infamous on‑air bust‑up - the clash that ultimately brought their hit breakfast show crashing down.

According to documents filed in the Federal Court late Tuesday, the confrontation unfolded at KIIS FM's studios following an incident broadcast on air last year.

The Commonwealth Broadcasting Corporation (CBC), a subsidiary of ARN Media that runs KIIS FM, has lifted the lid on the previously unreported row - the latest twist in its legal war with its former stars.

Sandilands, 54, and Henderson, 51 are both suing the broadcaster for wrongful termination, while CBC is fighting back, accusing the duo of triggering major financial losses after their ratings‑leading show imploded following another on‑air stoush in February.

According to the court documents, the once rock‑solid friendship - forged over more than 20 years on air - had already fractured months earlier, with a massive behind‑the‑scenes blow‑up in September last year.

CBC alleges Sandilands spoke 'contemptuously' to Henderson during an on‑air argument - an incident she has also cited in her statement of claim against the network.

But the argument didn't stop when the microphones were switched off.

'Kyle, that's a bit rough, like f***en hell, I haven't done anything to f***en cop it,' Henderson is alleged to have said, according to CBC's defence documents.

Sandilands is then claimed to have fired back: 'You wanna know the truth, here's the truth. Today's the first day you've ever paid any attention or had to carry anything in the opener, and it's all s**t.'

The documents allege the exchange deteriorated further, with the pair telling each other 'f**k you'.

Sandilands is then alleged to have doubled down, accusing Henderson of being 'too much of a mother hen' and not focused enough on the show.

'Don't f***ing bother coming back either until you get your f***ing s**t together like a normal person,' he is alleged to have said.

According to the defence documents, Sandilands claimed he had been 'carrying this whole show for a f***ing year', complaining that every time he raised concerns, 'newsreader Brooklyn Ross and others said nothing'.