Geordie Shore's Vicky Pattison and TV presenting icon Ulrika Jonsson are reportedly the latest two stars to sign up for Celebrity SAS: Who Dares Wins.
The show - staged annually in aid of Stand Up To Cancer - sees a troupe of famous faces put through their paces on a SAS-style admission course under the stewardship of Ant Middleton.
The new series is expected to be filmed later this year and according to The Sun, 32-year-old Pattison and former breakfast TV weather girl Jonsson, 53, will be among the new recruits.
"Vicky is so excited to take part in the show," a source told the newspaper. "She is nervous as she knows that it won't be easy, but she is more than up for the challenge."
Of Jonsson, another insider said: "Ulrika is a huge signing for SAS and she's ready to show the world just how tough she is.
"Her four kids encouraged her to give the show a whirl. In their eyes it's really cool. It is the toughest show on TV but everyone who signs up ends up taking so much away with them.
"It's really fulfilling so when Ulrika was asked she jumped at the chance. She is physically fit but has suffered back pain in the past because of a degenerative disc condition.
"The show might not be easy for her but she's going to roll up her sleeves and really give it her all."
The pair will reportedly be joined by Olympian James Cracknell and The X Factor heartthrob Jake Quickenden on the show.
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