Last weekend, Olly suffered an awkward encounter after accidentally telling Monica Michael she was leaving The X Factor, before the public vote had been read out.
He has since apologised for his error, telling fans he is "still learning" when it comes to live presenting, but that didn't stop Olly from receiving a backlash on social media. Dermot, however, made sure to show his support for the 'Kiss Me' singer, leading Caroline to dub him as "the greatest person ever".
Following Olly's mistake, former X Factor host Dermot was quick to tweet the star to offer him his reassurance.
He said: "Hey @ollyofficial Ahoy my friend. Keep that head up. Happens to us all."
Dermot's tweet seemed to mean a lot to Olly, with he then replying: "@radioleary cheers Derm!! Beating myself up about it mate! What a plonker!"
Reveal caught up with Caroline on the red carpet at the ITV Gala in London last night (19 November) and she was quick to praise Dermot for getting in touch.
She said: "It's because Dermot is the greatest person in the world. He's the guy that me and Olly are stepping into the shoes of and that's a hard task, but he's been so supportive and that just shows how good he is as a guy."
Having her say on Olly's slip up, Caroline insisted he's not the only one who makes mistakes live on air.
"He made a mistake, I make loads of mistakes, but you cover it up and you move on," she added. "You have to leave it behind you."
Caroline also revealed that their boss Simon Cowell was nothing but lovely to Olly about it, telling him he will live and learn from it.
Olly, himself, opened up on *that* incident too, admitting he thought he was in for a telling off from the music mogul, but luckily it never came.
He told The Mirror: "At the end of the day, I made a single mistake at a critical point in X Factor which was massively blown out of proportion."
Axed contestant Monica, however, has insisted there are no hard feelings. In fact, she exclusively told us she "feels sorry" for Olly over the whole debacle.
"I think any opportunity for anyone to point their fingers at someone they are going to do it," she said. "It's live television, I'd like to see other people get up there and doing it."
"I feel sorry for him, really. He needs to dust himself down and move forward onto next week."
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