Spill your guts or fill your guts Let's take a look at the food that we have. We have salmon smoothie,... ...a beef tongue,... - ...bird saliva,... - It gets stronger and stronger. - ...a herring rollmop,... - That's alright. ...a scorpion,... ...fish heads,... - ...hot sauce,... - It is safe to do some with sauce? We're going to find out, Ewan ...and finally, bull penis. So here's how it works. Ewan and I will be asking questions to Niall and Isla and viceversa. If someone on your team chooses not to answer their question... You both will have to eat the disgusting food. - Have we got it? - Yeah - OK, Niall... - I'm already married. ...you run first. Niall, I'm gonna give you... -Please don't, my ass reflux with frijols. - Anything but the scorpion, please. - ...the salmon smoothie. OK? Here's your question. So if you answer the question you don't have to eat. And if you don't answer the question, you both have to have a glug of the smoothie. I don't know what I'm most nervous about, the question or the smoothie. Well I've just seen the question and it might be the question. Niall, who is your least favourite member of One Direction? It's up to you. You should drink, I'm not your publicist but I don't know you should... I just might, and take the Daily Mail hit tomorrow just for a crap answer. - I'm trying to help Isla. - Don't help her, help your life. - Help your life. - I'll drink it! You're gonna go salmon or you're gonna...? Oh, here they go, look at that. - He chose salmon, I think is best. - For a future life, I'll go with this. OK Niall here we go. Nice big glub. Down the hatch. Hang on, here you go, there you go. - Big spoon full. Ready? Cheers! - Salmon is fine. You can drink. - Oh my God. Are you alright? - It's not how it tastes, it's texture. - It's like having a salmon yoghurt. - She's some in her hair to keep for later Right. So now, Isla you'll ask your question to me. - Well, well, well. - So which food would you like... ... me and Ewan to have? - Have a look at the question first. - Wow, that's cheating. Oh, he's definitely going to eat. He's going to eat, he's going to eat. Ok. I'm going to give you scorpion. You didn't seem frightened before. - I think it is the easiest one. - He's a nice guy, come on. You say that until it is in your face. All right, Scorpion. James, name one artist you've turned down for Carpool Karaoke. How long have you got? Cheers mate. - Ewan, your question to Isla! - OK. What is Isla going to eat? I think I'm going for the tongue because this is too easy. - The beef tongue coming round. - And it's one each. Yes, you've to eat the whole thing. No, it is a joke. OK. I think this is a key one. Isla, has your husband Sacha Baron Cohen ever done a character in bed? And I think it should be added: and if so, which one? - Which one? Yes, of course. - High five! Here with my wife! - Very nice room. - I like it! Niall is a private guy. - Wait, wait, wait. - Here's a knife. You can cut a bit off. No, you know what? He hasn't done a character in bed. He hasn't. He has had like a moustache when he's been Borat... ... or he has had like the blond hair. He has been in characters visually but... ...I've never heard... or something. Are you saying never, at the end of a romantic moment... ... has he looked himself in the mirror and gone... - I am saying that safely. - Alright, there we go. Good answer! Niall what would you like to give Ewan to eat? OK. Ewan you're up. I'm still thinking about that saliva. Surely the question gets better. I'm sorry boys. - Jeez OK. We're back to the bird saliva. - How do they do it? How do they get it? - I can only... - Come on,... ...come on. - OK, now what's the question? It is the greatest question ever! Ewan, have you ever (bleep) your pants? The show is only an hour. I mean, you could lie, there's only one or two people that would know. - I'm really enjoying this. - Well, I guess yes! - Hang on, wait, how old were you? - Well I was very young at the time. - There wasn't have any age, was it? - We've all (bleep) our pants as babies. That is all I was referring to. I might have (bleep) my pants in the 90's. Ewan McGregor killing it! OK Niall, I'm going to give you guys... ... some beef tongue right? Some beef tongue. Are you ready? I'm going to have to eat this one. Niall, you've dated both Selena Gomez and Ellie Goulding. It is your last night on Earth, out of the two of them... ...who would you rather spend it with? That doesn't hurt anyone. - Isla is going it doesn't hurt anyone. -I'm afraid it does, Isla. The trouble is it is not really the last night, so tomorrow, you know... -...someone will be upset. - 'm going to give, OK... ...I would... ...because it is the last night on Earth, Ellie is a big fan of Planet Earth... ...by David Attenborough so I would sit and watch that with her and... ...for that reason, Ellie Gounding. OK, Isla it is your turn. You now will ask me a question and select a food. You know what? You guys seem so keen on the beef tongue, giving it to us... ...time and time again, so we will get revenge. - Oh look at that - OK You're definitely going to eat that. Do you have your knife and fork ready? I wouldn't give that to my dog. Which late night host do you prefer: Kimmel or Fallon? Well, that's tricky. Oh dear, are we eating this? That was Spill your Guts or Fill your Guts! My thanks to Isla Fisher, Niall Horan and Ewan McGregor. We'll be right back!