They force contestants to undertake Bushtucker Trials in the jungle. But I'm A Celebrity hosts Ant and Dec are resorting to a very different sort of trial off screen.
Over the past three weeks I'm A Celebrity viewers have watched this year's group of famous faces take on Bushtucker Trials in a bid to win food for camp.
AngryGinge and Aitch proved that they were popular with the I'm A Celebrity viewers after being voted for a number of Bushtucker Trials on the ITV show - but are they losing momentum?
Dean fell victim to the public vote and was forced to take on six Bushtucker Trials in a row during the series, with viewers claiming Ant and Dec 'hated' him during a series of exchanges.
For 25 years it's been a crucial element of I'm A Celebrity - the public can vote to watch their least favourite contestant squirm as they endure gruelling Bushtucker Trials.
The official line-up of the 25th series of the programme was dropped last week, and viewers will be treated to the likes of Kelly Brook, Martin Kemp and Aitch taking on the Bushtucker Trials.
The former Lioness and BBC Sports presenter, 41, is also hoping to show a different side of herself to viewers as she pushed out of her comfort zone in the Aussie camp.