Graham Norton’s ‘worst ever guest’ spoke out about experience after ‘falling asleep’ halfway through show

Graham Norton has always been open when it comes to the worst guests he's had on his infamous chat show, but one seems to stand head and shoulders above the rest.

Norton has hosted The Graham Norton Show on BBC since 2007, with the 62-year-old welcoming a number of celebrities and personalities onto his iconic sofa for a chat.

A number of famous faces are usually brought on at once, providing viewers with a unique watch of names that you'd never expect to be the same room as each other.

However, with so many personalities in the same place, you can expect that things could and may go wrong.

While the Irishman previously said that Robert De Niro was the worst guest he'd ever had on, he later changed his answer to Mark Wahlberg.

If you were wondering why, have a look:

During an appearance on Kiss radio, Norton claimed: “I had Mark Wahlberg fall asleep. He was very, very drunk. It was me, Michael Fassbender and Sarah Silverman.

"But it was hard to get anything done."

He claimed that this was not only because he was intoxicated, but also because he wouldn't let others finish their stories.

But then, things suddenly improved: "At one point, Michael Fassbender is telling a story and it’s going really well. Like, he’s getting through the story and I’m thinking, ‘wow this is going well’.

"And then I look over and Mark Wahlberg is just asleep. That’s why it’s going well!”

He said the same on This Morning a few years ago, adding: "He's been on a few times since, but the famous time - he came on [and] he was fine."

Norton compared it to getting home after a night out and actually being more drunk than you were when you left the pub.

But it turns out that Wahlberg had already addressed the episode in question.

Wahlberg was all over the place in the episode (BBC)

The American actor could be seen interrupting other celebrity guests in the episode, and even sat on Norton's lap while stroking his nipple, with the host looking very uncomfortable.

With many believing that he was drunk, it turns out that Wahlberg's behaviour was pre-planned, claiming that it was a bit that he organised with Silverman.

He revealed to Digital Spy: "Sarah Silverman and I talked about doing something funny. I was trying to do a 'bit' and some people took it too seriously."

Fassbender seemed to enjoy Wahlberg's antics at least, though the so-called 'bit' involved pretending to be obsessed with Silverman, staring at her, and even occasionally laying a kiss on her.

This isn't the first time Silverman has been in the news for a fake celebrity love though, as her song 'I'm F***ing Matt Damon' won an Emmy in the past.

Whether it was real or not, pre-planned or off-the-cuff, I think we can all agree that none of it helped to make the episode any more watchable.