A legal battle has erupted between former KIIS FM radio host Jackie 'O' Henderson and her former employer ARN Media, with the company alleging she threatened a workplace harassment complaint against co-host Kyle Sandilands to secure a new timeslot.

Court documents reveal ARN has amended its defence, arguing Henderson's threats to SafeWork NSW were not made in good faith and were instead a tactic to gain a different show slot.

The dispute centres on Henderson's claim she was unfairly sacked in 2026 after refusing to work with Sandilands, with ARN asserting her contract was validly terminated.Henderson's manager, Gemma O’Neill, is cited as evidence that she had already resolved to move to another show.ARN also seeks repayment of a loan used to purchase shares, citing the terminated contract.The case highlights tensions in the media industry, with Sandilands recently settling a separate dispute with ARN for $12 million.Henderson remains seeking the full $100 million payout from her contract, while the legal proceedings continue to unfold.