Louise Minchin left the morning TV show in September, after appearing on Breakfast alongside Dan Walker since 2016.
She first joined the BBC in 2001 as a freelance journalist and presenter, and got a regular anchor position in 2006.
The show’s new series, presented by comedy duo Ant and Dec, premieres Sunday, November 21.
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In light of the pandemic, the program will be filmed again at Gwrych Castle in North Wales for the second year in a row.
Last year’s Covid restrictions meant it couldn’t be filmed in Australia as usual, but the new location was a hit with viewers and saw Giovanna Fletcher crowned the winner.
In a Twitter post, Louise confirmed she was heading to the castle for the new series to debut.
She wrote: “… the secret is out!
“I can confirm I’m on my way to the castle for this year’s @imacelebrity
“I am VERY nervous and also very excited – I love a challenge but this is going to be a BIG one and I can’t wait to see what happens. Wish me luck and see you on the other side! Xx”
It comes as the official trailer for this year’s I’m A Celeb was shared yesterday, revealing the full lineup.
A pre-recorded video of Louise aired on BBC Breakfast this morning, where she spoke about her upcoming appearance on the show.
What did Dan Walker tell Louise Minchin about I’m a Celebrity?
Dan was thrilled that his old colleague was back on TV, even if it changed his role as a regular presenter a bit.
She said she had “always wanted” to be on the show and thought “why not? when making the decision to join this year’s cast.
She also said she was “particularly” afraid of crawling insects that “move quickly” – such as spiders and cockroaches – as well as “small enclosed spaces”.
She added: “Thank you very much for all your support over the past few years on BBC Breakfast.
“It’s going to be, hopefully, a huge pleasure, a huge challenge. I hope I make you laugh and come over smiling from the other side.
After the video, the cameras returned to the two presenters, where Dan showed his support for Louise.
He said, “She’s going to be fine. She’s like a machine! You know how she is, she has a moment before anything that’s difficult where she goes “I’m not sure I can do this” and then she does.
“I’ve never seen her fail at anything…. she’s going to be amazing and I’m sure the right people at BBC Breakfast will back her up. I already told her – I spoke to her last week – and she said she supported me in the other [Strictly], so i will be [supporting her]. “
He also showed his support for Louise on Twitter, writing, “Hello everyone … can’t wait to see @louiseminchin on TV again. My phone bill is going to be huge!
What is the cast for I’m a Celebrity 2021?
The latest lineup has now been revealed by ITV.
In addition to Louise Minchin, it includes Olympian Kadeena Cox, Emmerdale star Danny Miller, Radio One Extra host Snoochie Shy, music producer Naughty Boy, Tom Daley diving partner Matty Lee, the TV presenter Richard Madeley, former Saturday singer Frankie Bridge, former Newcastle and Spurs. winger David Ginola, ex-judge Arlene Phillips, Eastenders actor Adam Woodyatt and Coronation Street star Simon Gregson.