He's one half of the most successful radio duos on Australian airwaves, known for his polarising persona and no-holds-barred approach.
But behind the bravado, lies a side to Kyle Sandilands we rarely see.
In an emotional new interview, the radio star has revealed he's been battling with a serious health condition.
The revelation comes in an upcoming 60 Minutes interview with KIIS 1065 stars Kyle and Jackie "O" Henderson.
In the new clip, the 48-year-old tells co-host Jackie: "I love you and it's been wonderful," before he tears up and adds: "[But] there's a condition I've been diagnosed with that I haven't spoken to anyone about."
Clearly shocked, Jackie seems overwhelmed by her colleague's admission.
The full interview, which was conducted by Karl Stefanovic, will air on Sunday May 24th.
Kyle's health condition could explain why he was absent from his morning breakfast show for several weeks throughout last year, with former NRL player Beau Ryan filling in for him for long periods of time.
In the past, the radio presenter has admitted to struggling with his health and needing to eat healthier.
"I was a bit sick last year, just from being a fat b--tard and not getting enough sleep," Sandilands told Sunday Confidential in 2019.
"I was almost dead last year. My problem was I'd drink way too much coffee and I was drinking Coca Cola like it was water. Now I've swapped over to water."
He's also admitted to struggling with addiction to cocaine.
"Life wasn't great back then so I buried my face into a big pile of cocaine to try and get over it. It didn't work," he explained on air.
Meanwhile, the 60 Minutes interview promises to lift the lid on Kyle and Jackie O's 20-year career.
"Chaos, controversy and undeniable chemistry. @KyleandJackieO have ruled the Australian airwaves for 20 years. SUNDAY on #60Mins, how the King and Queen of radio have turned being outrageous into a hundred million dollar business," the promo reads.
"Trying to stay number one, is harder than getting to number one," Jackie explains of their success.
As for what it's like working alongside the very unfiltered Kyle? "I'm always worried, you're going to say something and just ruin you," she admits.
"I don't give a f--k!" Kyle blasts back.