Balls of Steel presenter Mark Dolan has become the latest name confirmed for The Jump 2017 line up.
As well as fronting Channel 4's Balls Of Steel between 2005 and 2008, the comic and TV host has appeared on Let's Dance for Sport Relief and co-hosted If Katie Hopkins Ruled the World.
Mark confirmed the news on Twitter and told the Daily Mirror newspaper of signing up: "I'm delighted to be taking part, and by delighted, I mean absolutely bloody terrified.
"However, I'm confident I will excel in the après-ski (the social activities following a day's skiing). That's a sport, isn't it?"
Mark is the latest celeb to sign up to the fourth series of the show, following news that Olympian Louis Smith had also joined the line up.
Channel 4 renewed the Alpine sports series earlier this year despite its last series seeing seven contestants withdraw due to injury.
They included Louis' fellow Olympian Beth Tweddle, who required months of recovery after fracturing two vertebrae in her neck.
Louis commented: "I’ve had some ups and downs in 2016 so am massively looking forward to getting stuck into The Jump.
"As a professional athlete I’m massively competitive. I’m pretty fearless when it comes to any snow sports so can’t wait to get out there."
Louis also won silver at the London 2012 games, and was crowned champion of Strictly's tenth series later that year.
The Jump 2017 begins on Channel 4 in the New Year.