I'm a Celebrity... Get Me Out of Here! will return to our TV screens next Sunday (November 18), and while we wait for confirmation on the rumoured celebrity line-up, we thought you'd be interested in some surprising behind-the-scenes secrets.
As the stars prepare to slurp pulped crocodile foreskin and conquer their fears of snakes and spiders, here's everything they should already know about taking part....
1. This is how many pairs of underwear and swimwear campmates can pack
Although the celebrities could be in the jungle for up to a month, the show's health and safety specialist Medic Bob has previously told The Sun that campmates can only pack three pairs of pants and three pairs of swimwear.
Had it been down to the show's co-creator, Natalka Znak, they would have only been allowed one pair, so frankly they should be grateful.
2. Why are the campmates' socks red?
Medic Bob has also confirmed to Women's Own that the uniform socks are red not only to match their trousers and fetching fleece gilets, but to stop the blood from insect bites showing up. That should stop them scratching...
3. The rocks in the jungle aren't real…
Forget everything you once knew because the rocks in the jungle are actually made out of papier-maché and are hollow inside. Ex-Made in Chelsea star Hugo Taylor claimed to Cosmopolitan UK that the rocks are man-made because there are cameramen hidden inside.
"In terms of the structure, they keep it the same each year because of all the cameras that are hidden in man-made rocks," he revealed. "Some of them are automated revolving cameras, and some of them are people with large camera equipment hidden in rocks, operating them manually."
4. But the campmates' conversations are!
We're used to hearing reality TV stars complaining about producers telling them what to say in order to prompt a certain storyline, but Taylor said his jungle chats were completely authentic.
"Producers never encourage conversation, though, it's all organic," Taylor added to Cosmopolitan. "It's not like Love Island or Made in Chelsea – that's why I think the friendships that develop are genuine."
5. The waterfall is turned off at certain times of the day
Lauren Booth, who appeared on the 2006 series, let slip that the famous waterfall was turned off between three and six every afternoon when she appeared on the show.
"I also realised that the waterfall, like the pool beneath it, was not part of the jungle at all, but a man-made creation," Booth told Femail. "Unless, of course, real rainforest waterfalls get turned off between three and six every afternoon."
6. Celebrities can still be heard even if they cover up or remove their mics
"There are 46 hidden microphones in case the celebs take their radio mics off," an ITV publicist revealed.
7. And there are 107 cameras on site
If the celebrities feel like they're constantly being watched, that's because there are 107 cameras on site, and some 34 cameras in camp – 15 of which can see in the dark.
8. The show has an insect-breeding factory
According to Mark Busk-Cowley's book I'm A Celebrity... Get Me Out Of Here! The Inside Story, an insect breeder bred 250,000 cockroaches, 153,000 crickets, 2.5 million mealworms and 400 spiders for the 2013 series.
And during Brian Harvey's infamous House of Pies task in 2004, 1.5 million flies were used – but none of them could actually fly because of their breeding conditions.
9. Celebrities get changed behind a 'modesty smock'
After complaints from celebrities on series one that they didn't have any privacy while getting changed, a 'modesty smock' was introduced so campmates could get changed in front of the cameras while protecting their modesty.
10. Producers meet with 60 to 90 potential celebrities
It was revealed recently that the casting process for Strictly Come Dancing is long and arduous as the list of stars they want is "endless", and it would appear it's similarly as tricky for I'm a Celeb.
Before they're selected, though, the celebs are given the 'Talk of Doom" by executive producers, and sent a pack with details so they understand exactly what they're getting themselves into. If they read it...
11. Why Medic Bob advises washing twice a day
Medic Bob revealed on last year's spin-off show that he had to encourage some of the campmates to wash more often.
"Most people think of fungus as mushrooms but we have problems with the cast every year – especially women growing fungus on certain body parts [breasts]," Bob explained on I'm a Celebrity Get Me Out Of Here Now.
"I've been instructing them to use the shower and personal hygiene a little bit more often."
12. Why the hosts' watches are covered up on the show
Viewers were quick to spot that Ant McPartlin's watch was covered with black tape during Extra Camp, prompting some conspiracists to suggest the spin-off show wasn't really live.
Co-host Scarlett Moffatt dispelled that rumour by explaining: "I can reveal the reason for this is, actually, we are live, that's why we make lots of mistakes. It's so the campmates don't know the time, so all the watches are covered for the people that see the campmates all the time, like Ant, Dec and Medic Bob.
"I think it's just so you're really disorientated, like we had no concept of time. I always remember, and I don't know if I'm allowed to say this – we all once went to bed at around 4pm and you're obviously in there by yourself, but they did have to say, 'Guys, it's a lot earlier than you think.'"
13. Rules can be broken
Just ask last year's winner Toff. I'm a Celeb's policy means no make-up can be worn in the jungle, but the MiC star was able to bend the rules after she told producers she was on medication for acne and required foundation to cover it. Toff revealed to The Sun that she was allowed put foundation on once a day in the morning.
I'm a Celebrity... Get Me Out of Here! premieres on Sunday, November 18 on ITV.
('You Might Also Like',)