Paddy McGuinness is to host Channel 4's new, high-adrenaline show Don't Look Down to benefit cancer research.
The Top Gear star will lead a line-up of famous faces as they attempt to work together to tackle a high-wire walk 300 feet above one of London's most iconic landmarks in aid of Stand Up to Cancer.
The celebrities, yet to be announced, will attend a summer training camp in the Austrian Alps, tutored by the world's foremost experts in high-wire walking.
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There, they will prepare for a never-attempted-before feat and complete a relay walk, led by McGuinness, on a wire looming high over London.
Related: Paddy McGuinness: "I had a confrontation with Jeremy Kyle"
"I've done all kinds of shows, but this is definitely the most nerve-racking!" McGuinness said in a statement.
"I'm so excited to be hosting Don't Look Down, which is undoubtedly going to be the challenge of a lifetime for everyone involved.
"I can't wait to get cracking and see whether I can lead the team to find the nerve to take on this ridiculously high and very difficult walk. They're not going to be in for an easy ride, but it's all for such a brilliant cause and I hope we raise loads of money for Stand Up to Cancer.
"I'm now off to practice on the washing line."
Channel 4's head of entertainment and live events Phil Harris promised a boundary-pushing reality show not to be missed.
"Don't Look Down is following in Channel 4's tradition of boundary-pushing reality formats. It's going to deliver everything from nerves and tears to laughs and camaraderie, cumulating in the most audacious of final stunts," Harris said.
"We're thrilled to be working with Paddy again as he hosts the series and leads our celebs in their sky-high challenge, all part of a hugely ambitious year of Stand Up to Cancer. This is event television not to be missed."
Related: Top Gear's Paddy McGuinness and wife Christine announce split
Steven Handley, commissioning editor for Channel 4, said: "This is a challenge unparalleled and our celebs are going to need nerves of steel to overcome their fears and tackle the dizzying heights of Don't Look Down.
"As someone who is afraid of heights myself, I'm already having anxiety dreams about the challenges involved in our Austrian training camp. I can't wait to see how the gang work together to complete the terrifying walk and help raise vital funds for Stand Up to Cancer."
Channel 4 has commissioned production company South Shore to bring Don't Look Down to life.
Caroline Davies, director of programmes at South Shore, teased a "super-sized high-wire walk" that has never been attempted before.
"We can't wait to see if Paddy and our brave cast of celebrities can overcome their primal fears of heights and complete this enormous challenge, all in aid of Stand Up to Cancer."
Don't Look Down will air on Channel 4.
Reporter, Digital Spy
Stefania is a freelance writer specialising in TV and movies. After graduating from City University, London, she covered LGBTQ+ news and pursued a career in entertainment journalism, with her work appearing in outlets including Little White Lies, The Skinny, Radio Times and Digital Spy.
Her beats are horror films and period dramas, especially if fronted by queer women. She can argue why Scream is the best slasher in four languages (and a half).
