He's long been known for his no-nonsense interview style, so it won't come as a surprise to hear even one of Hollywood's biggest divas shouldn't keep waiting.
In fact, the broadcaster, 66, has now revealed he stormed out of a chat with singing superstar , after she turned up four hours late and decided to take a nap instead of starting their chat.
Eamonn said he was told by Mariah's team that she was 'tired' as she'd woken up at 9am, leaving him unimpressed as he'd been awake five hours earlier.
In hilarious fashion, the star said he decided to lie down on the sofa beside her, so they could complete the interview.
It was a move that sparked fury from Mariah's team, and in response Eamonn declared he was cancelling the interview and walked out.
It comes after sources told Daily Mail's Katie Hind that Eamonn has been ordered to take time off from his GB News show by bosses, due to the ongoing crisis about his 'unravelling' on-screen behaviour.
Eamonn Holmes has revealed he sensationally stormed out of an interview with Mariah Carey after she arrived four hours late before deciding to take a nap
Speaking to Hayley Palmer at an Audience With live even in London's Hippodrome Casino, Eamonn regaled tales from some of his most iconic interviews after more than 40 years working in TV.
He revealed: 'Say the interview was at 11 o'clock in the morning, and she wasn't there she didn't turn up, 12 o'clock, one o'clock, they said ''hang on, she'll be here, she'll be here.''
'Bearing in mind I've been up from four o'clock that particular day so I'm going, ''what the hell's going on here,'' so I said ''right if she's not here in the next 10 minutes I'm going.''
Eamonn said Mariah eventually arrived four hours late, revealing: 'So she comes through the door, and she immediately lies down on the chaise-longue, and closes her eyes.
'And I said ''what the f**k is going on here?''
'They said ''Ms Carey is very tired, she's very tired, she's been up from nine o'clock this morning.''
'I said ''she's been up from f*****g nine o'clock I've been up from four!'' and so I walked over and lay down beside her.'
'I wouldn't do it now, because things have changed,' Eamonn added admitting he started Mariah and woke her up.
The broadcaster said he decided to lie down beside Mariah after being told by her team she was 'tired,' but when they reacted with fury, he stormed out
The move sparked fury from Mariah's team, but he hit back: 'Ms Carey's tired, I've been up earlier than she has, I'm tired too, so we're both going to lie down here.'
'Oh my God there were ruptions about this! So I said look, ''one way this interview is happening, either we both lie down, or we both sit up.''
'They said ''well Ms Carey certainly won't be sitting up,'' so I said ''well Mr Holmes certainly won't be doing the interview,'' and I tiddled off then.'
In recent years, Eamonn has battled a string of health problems after he dislocated his pelvis in 2021, sustaining three slipped disks.
During his recovery from surgery, Eamonn then endured a further blow when he fell at the former marital home he once shared with ex-wife , breaking his shoulder.
Eamonn's outing comes weeks after he emotionally opened up on his health battle, revealing he can't .
Speaking on the Session 7 podcast, Eamonn gave an insight into his current condition saying: 'I'm sick. I'm in a wheelchair. That's been horrendous to deal with for two years.
'Certainly I don't think TV wants to know you when, I mean there's nothing you and I are talking and no one can there's anything wrong but I can't get up.'
Eamonn said he has carers 'throughout the day' and that once he is sitting down, he is able to do most things on his own.
The former This Morning host said 'your health really is your wealth' before adding that he understands society finds it hard to 'deal with' people with disabilities.
Eamonn talked about his health woes in a previous interview with the Sunday World, telling the Irish publication: 'I have to have carers now looking after me.
'Somebody dresses me in the morning, somebody undresses me at night, somebody gets my food for me.
'I have to be tested with spinal injections to see if it will take, and then grow some life back into my spine and legs. It's all very experimental. I'll know next week. I'd say this is the toughest stage of my life ever. And I just battle on.'
Meanwhile, Eamonn's ex Ruth has recently revealed from the Northern Irish presenter.
The couple, who share son Jack, separated in May 2024 after 14 years of marriage.
Speaking to Rylan Clark on BBC Radio 2, Ruth said: 'I've had counselling and its the best thing I ever did.'
'All the situations and other things have come up and that was through a friend of mine who said, 'Would you please maybe think about seeing my counsellor?'
'And she had helped her through a very difficult divorce. And I went, 'I don't need to see a counsellor, to tell me I'm sad'. She was like, 'Honestly it's so much more that that'.'
Ruth continued: 'Anyway, she pecked my head for so long. Eventually I said yes to shut her up, to be honest. I went, 'Fine ok'.
'It's the best thing I ever did and I'm still doing it. With your friends they're always on your side really and they will stand by you whatever decisions you make or however you're feeling, they'll hold you up.
'A counsellor is very different, they look at the bigger picture, they don't know you and they never tell you what to do. She's never told me what to do, she's just guided me to think in different ways about things.
'Lots of people have picked up on this saying that she said to me, which was, 'Find your light'.
'Everything felt so dark and she said, 'Just use that energy that your feeling anger and sadness, try and bring that energy here and find your light''.
