Ant and Dec have told how the new All-Stars version of 'I'm A Celebrity... Get Me Out Of Here!' is "brutal".
The pair headed to South Africa last year to shoot the series, in which some of the favourites from the show's past will aim to become the first-ever "Legend of the Savanna", but Ant revealed contestants will go head-to-head in challenges and the loser will leave the show.
Dec said: "It's kind of an all-stars ... taking some of your favourite campmates from the last 20 years and taking them for a brand new challenge in South Africa.
"So it's a completely different landscape and they're doing it again. They're competing to become the first ever 'I'm A Celebrity' 'Legend of the Savanna'... It's very special."
Ant said: "And it's slightly different to the show we do in Australia because they go head-to-head in trials and whoever loses leaves.
"It's quite brutal, so that's how we decided the winner."
Dec added: "We've done it, we've shot it and it's really, really good."
The pair admitted it was quite different filming the show in South Africa, compared to their usual Australian home for the main 'I'm A Celebrity' show, because there were "baboons everywhere" they looked.
Ant said: "Do you know what though, there was loads of baboons when we filmed the series.
"There was baboons everywhere. Like we'd be in the middle of doing a trial and then you would just hear the noise, literally just behind the cameraman, and a whole family of baboons ... is that what you call them? A group of baboons? A school of baboons? I don't know. A babble of baboons would just sit watching the trial."
Speaking in a joint interview on 'Lorraine', Dec added: "They came along in the middle of the trial, they just came along and just sat there.
"That was the audience, yeah! Hopefully there will be a few more watching when it goes on telly..."
Ant joked: "We didn't get any laughs from the baboons!"