Talking about keeping in shape for her action roles, Jessica Biel says, "You spend months and months training and doing crazy diets. It's the hardest experience. You look great but you are miserable. I literally dream of food. Cake, pasta, bread and croissants are in my head the whole time, that's all I can think about."

Admitting she cracked at least once a week, she says, "One cheat day I went to Dunkin Donuts and ordered 24 doughnuts and went to a pizza joint and ordered two giant pizzas and I sat in the car and I put as much bread and dough into my mouth as I could possibly manage. It was the best moment."

Sarah Millican asks Jessica, "Have you ever eaten a croissant out of a bin? If we are going to talk about binging I should step forward. It was my bin and it was my croissant but I told my friend and she said, 'oh, you're posh now' because it was a croissant!"

Whilst she says she hasn't done that, Jessica does admit, "I've taken left over room service from the floor outside hotel rooms. You can't leave a French fry like that."

James Corden admits he has a boy-crush on David Beckham and says, "If you ever meet him you don't know whether to shake his hand or lick his face. He is so nice."

Confirming he is having a 'bromance' with David, he says, "Yes, occasionally we will send a text to each other and things like that. But he started it and the first time he sent a text I had to call all my friends to tell them before replying. My girlfriend says she always knows when I am texting David because I look really happy, which is really tragic!"

Talking about naming his son Max McCartney Corden, "When I told him (Paul McCartney) what I had done he said, 'That's ridiculous,' but a few days later the nicest baby blanket arrived and it said 'From one McCartney to another, love Paul.' It was amazing."

He adds, "Fatherhood has changed me. It's so great in every way. It's terrific and I love every minute. I am so lucky."

On being voted 'The World's Sexiest Man' Bradley Cooper says, "I'm at an age where I don't care about things like that anymore. I actually thought it was a joke when I heard. It's annoying because I started to think about how not sexy I am. The other day I opened a door and thought, 'I can do that a lot sexier."

Expressing surprise at the success of Hangover 2, Bradley says, "It's unbelievable." And on the prospect of a third film in the series, he says, "I personally want to do it and I hope we are starting shooting in September. The third one would have a different structure to the first two and will be set in Los Angeles."

Sarah, talking about the title of her new DVD says, "It's called Chatterbox because that's what I am. I thought it was great until someone told me there is a movie called Chatterbox and it's basically about a woman who has a talking vagina!"

Lenny Kravitz performs Black and White America in the studio before joining Graham for a chat. Talking about receiving a Chavalier award in France he says, "It's not 'the sexiest man' but I was knighted in arts and letters. It's very nice. It was quite surreal."

Talking about his role in the movie Precious, Lenny reveals he plans to do more acting roles, "It's a great experience. I will be doing more in between touring, I have a day job."