I'm A Celebrity 2015: Duncan Bannatyne and Chris Eubank among jungle line-up
The final line-up for I'm A Celebrity... Get Me Out Of Here! 2015 includes Dragons' Den star Duncan Bannatyne, former boxer Chris Eubank and royal biographer Lady Colin Campbell.
Also among the 10-strong line-up is fashion guru Susannah Constantine, Spandau Ballet's Tony Hadley, TV personality Yvette Fielding, X Factor choreographer Brian Friedman and Union J's George Shelley.
Hollyoaks star Jorgie Porter and footballer Kieron Dyer were the first names confirmed.
Bannatyne, 66, is one of the oldest campers going into the jungle but says age is not a concern for him.
The businessman said he climbed Mount Kilimanjaro aged 60 and added: "I was one of the oldest people in our group who did. A lot of the younger people who started pulled out. There were 25 of us at the bottom but only 19 of us got to the top."
Also 66, Lady Campbell, who wrote a book about Diana, Princess of Wales's affair with James Hewitt, revealed her eldest son did not want her to do the show because "he thought I was too civilised to do something like this".
She said: "I am doing it for selfish reasons. It will help with the roof at the castle and I want to lose weight. I'd actually like to lose a stone if possible."
Hadley, famous for hits such as Gold and True, says the appeal of the show for him was "stepping into the unknown".
The singer said losing a bit of weight would be a plus for him: "I will be very happy to lose weight. It's a constant battle and so losing a bit of weight would be perfect in fact."
Fielding, 47, best known for fronting Most Haunted, said in a bid to cure her phobia of creepy crawlies she was hypnotised after finding an online site.
"I found this site on YouTube where you could hypnotise yourself to be braver. And when I woke up, I did feel a little bit more confident about going in," she said.
Boxer Eubank, 49, reckons this will be his first "holiday" since he was 16.
The former WBO middleweight and super middleweight champion said his reasons for the doing the show are varied.
His wife thought it would be a good idea, he explained, adding: "Another reason is since I started boxing at the age of 16, I had to have integrity about what I was doing in the ring. You can't really take a break and you are always on edge. You can't let go even when you are on holiday."
Constantine admitted she had been asked to do the show before but turned it down.
"The main reason why I have said yes this year is the time is right," she explained, "My children are old enough for me to be away for that long. Going on the show is going to be an amazing experience. I want to push myself physically and mentally."
She also said she thinks viewers will get to see a different side of her.
"I do think some people think I am posh and bossy," she said.
American-born Friedman quit working on The X Factor after nine years to tackle the jungle.
"Something in me was itching to make a change," he said, explaining his reasoning behind quitting as creative director of the singing show.
Hollyoaks star Porter, who plays Theresa, is concerned she is going to "lose her bum" due to a lack of food in the jungle.
She said: "I do lots of squats at home. I don't want to lose my bum in the jungle (from small rations). I will carry some rocks in the jungle to avoid this!"
The petite actress also is not shy to flash some flesh, and said she is packing a one-piece costume, but promised: "Hopefully the longer I stay in, I will probably go skimpier!"
Former England footballer Dyer is donating his entire fee from the show to the Jude Brady Foundation, which raises awareness of stillbirth and neonatal death, as well as raising funds for child-related causes.
Dyer, who also played for West Ham, Newcastle and Ipswich Town, said: "I am very competitive. But I am not going on the show for money. My fee is going to a charity. I am doing this show for the charity and my children."
Shelley, a former X Factor contestant as well as being a member of Union J, is going to be the youngest in the jungle at 22.
The singer said he hoped X Factor boss Simon Cowell would approve of him going into the jungle.
"Sinitta did it and she is one of his best friends. I hope he does watch the show," he added.