Kyle Sandilands, Jackie O and the biggest deal in radio history.

“In radio, you don’t leave negotiations until November when your contract is expiring in December,” Henderson said. “The fact that no one (at 2Day) had come to us with a contract by October (2013) spoke volumes to us.

“Kyle called me one night and said, ‘I’ve got an idea. What about we go to Mix FM and we rebrand it as KIIS?'”

Since launching with KIIS 1065, The Kyle & Jackie O Show has cemented its position as Australia’s most successful radio show, ever.

“Thank God for Kyle because he makes these big moves,” Henderson said. “He makes big moves and again this one paid off for us.”

In 2019, the Australian Radio Network (ARN) announced it had renewed the contracts of Sandilands and Henderson, with The Daily Telegraph reporting the pair are set to earn a maximum of $50 million each over six years.

An insider indicated their annual salaries could be as high as seven to eight million dollars, with incentive bonuses and revenue share on top.

This equated to around $39,000 each per three-and-a-half-hour radio show.

On Mamamia’s No Filter podcast, Henderson spoke with Mia Freedman about her impressive net worth and being the highest-paid person in Australian media. 

“I don’t love talking about money. I should be proud of the money I earned but I just hate it. I don’t know what it is. Maybe it’s just the way I was brought up. I’ve got an interest in other people’s salaries, trust me. But you sort of feel like it’s gloating. I don’t want to gloat,” she shared.