The Brit Awards host was forced to cut short the singer's 'British Album' winner's speech as the live broadcast was running over on time.
Talking about the incident to Richard Bacon on BBC Radio 5Live, Corden explained: "The truth is, just after Adele was saying thank you, people were saying, 'You have to go in now', and I said, 'I can't'. They were like, 'You have to'.
"I said, 'How can we cut her off?' The whole room was on their feet and they were like, 'You have to do it'. It was such a surreal moment and essentially you can hear five people in your ear having an argument.
"Then there was just one overriding voice saying that you have to."
After listening back to a clip of the incident, Corden revealed that Adele had a longer speech than he remembers as he was so preoccupied with what was being discussed in his ear.
He added: "It's a shame, but it's a live show and what can you do? All you can do is learn from it and the channel will learn from it and we can see how we can rectify that and change it next year.
"I don't think it's quite as big a news story as some might [think]. If you listen to it, it's not a bad speech. It's just unfortunate that it was cut short."
Talking about the immediate moments following the incident, he revealed: "I was so upset last night and I know Adele was and I couldn't even stay and watch Blur. I immediately went and spoke to her.
"I just said to her that I was so sorry and that if I had it my way, you just push the news [back] a minute and a half. If it was up to me or the executive producer of the show, then that's what would have happened."
ITV has released a statement apologising to Adele for the interruption and maintained that it doesn't want it to "undermine her incredible achievement".
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