The Graham Norton Show

Matt LeBlanc says the number of British actors working in the US is unbelievable; Seth Rogan talks about parodying Kim Kardashian and her beau Kanye West; Zac Efron says women just scream at him; and Ricky Wilson of Kaiser Chiefs won't be drawn on returning to The Voice.

Matt LeBlanc, on being recognised by fans in the UK, says, "I was in staying in a hotel and was going to go to the gym when I saw 2000 screaming teenagers in the lobby. I thought, 'Oh God, no. I hope I can sneak in.' I had no idea Justin Beiber was in the hotel. I could have been on fire and they wouldn't have noticed! I felt so old!"

Talking about Episodes, in which he plays a dark version of himself, Matt says, "In the beginning I was like, 'What do you mean I'm playing myself?' and they said, 'We're not making a documentary. It's a scripted comedy so if you are uncomfortable with anything we won't use it.' That was fine and it was really good but now it's come full circle and I'm pitching ideas to the writers and they are like, 'That's gross, we don't want you to do that. Keep that one to yourself and don't tell anyone you did that!'"

Asked if a storyline in the new series is drawn from his last appearance on Graham's show when Zac Efron sat next to Graham as the lead guest and Matt was in the middle spot on the sofa as second guest, he says, "I think the seed might have been planted there!"

On the amount of British actors currently working in the US, one of his fictional character's bugbears, he says jokingly, "It's unbelievable. It would be great if it worked both ways, but Americans can't get parts over here and the English come over there and get parts left and right."

Matt, on filming in the UK, says, "I love it here. It's a lot of fun and life here is different." Asked to explain what he means, he says, "It's funny, in America, if you go to a bar at lunch time it's empty, but not here! It's fine!"

All three guests agree Brits swear more. Matt says, "It sounds better and doesn't seem as offensive." Zac interjects, "It's worth two swears of ours. It's pronounced and really accurate. It takes on a whole different meaning and you make the sentence better!"

Zac, asked if women just scream when they see him, he says, "Sort of." Seth Rogan interjects, "It's weird, I've seen it. They just scream. Women make a noise I had never heard before in my life when they see him! There is no demographic that is not seduced by him."

Talking about his British fan base, Zac says, "It's always fun here in the UK. When I go away I don't know if they are going to be here when I get back and when they are I get really excited. I see a lot of familiar faces. I've sort of watched these people grow up and they are still around."

Seth, talking about his and James Franco's parody of Kanye West's pop video that features Kim Kardashian, and asked whether he hates the famous couple, he says, "No, I love them, I'm a huge fan of Kanye's music and as he likes our stuff I thought I would return the favour. Someone had to do it!"

Asked if Kanye had been in touch since, Seth says, "He's a big fan of comedy, he thinks it's funny. I ran in to him the other day and what disturbed me was that we spent more time making our video than he took making his. I said it took us three days to get it right and he said, 'Man, we did it in about four hours,' which makes sense! He acknowledges his is a weird video stylistically. I don't think he thinks it's like Thriller or anything like that."

Talking about his new movie Bad Neighbours and his eight-month-old co-star, Seth says, "She was the Daniel Day Lewis of babies but I'm banking on the fact she was too young to understand what was being said. Or if she did, I hope she takes the money she earned and spends it on therapy! There were a few times when her father was horrified!"

And on his renowned work ethic, he says, "I work a lot. I like to work and I like the movies we make. We laugh hard." Zac, obviously a huge fan, says of working with his co-star, "There is definitely method to the madness with Seth."

Kaiser Chiefs perform Coming Home live in the studio before Ricky Wilson joins Graham for a chat.

Asked about the band's come back, Ricky says, "I'm loving it. I'm enjoying it a lot more this time. I really didn't appreciate it the first time round - it went by so fast so I'm stopping more to savour the moment."

On being a judge on The Voice and asked if he is coming back, he says, "I haven't been asked yet and I'm not sure who has been asked. I was always a wild card. I was the least famous person at the party!"

And finally, Graham, with more than a little help from Matt, pulls the lever on more foolhardy audience members brave enough to sit in the Red Chair.