Ulrika Jonsson, Alexandra Burke and Kerry Katona will compete on the upcoming series of 'Celebrity SAS: Who Dares Wins'.

Ulrika Jonsson

Ulrika Jonsson

They will be joined by a host of stars, including Vicky Pattison, Jake Quickenden, Saira Khan, Ore Oduba, James Cracknell, Kieron Dyer, Aled Davies, Wes Nelson and Shanaze Reade, for this year's series of the survival competition, which returns to Channel 4 on Sunday 29th August at 9pm.

Viewers will see Chief Instructor Ant Middleton and his team of Directing Staff, Foxy, Billy, Melvyn and Staz, putting the celebrities through their paces over a period of eight days.

Ulrika said: "I felt it had a profoundly positive effect on me," and Kerry added: "This was a once in a lifetime opportunity…I never thought I’d learn so much about myself."

Alexandra said: "'Celebrity SAS: Who Dares Wins' is the most challenging thing physically and mentally I have ever done.

"It was such a life changing experience and totally blew my mind. I would do the whole thing again in a heartbeat!"

This series will be Ant's last, as he shared on Twitter in May: "After 5 incredible years I’ve decided it’s time to move on from SAS Who Dares Wins UK. Big respect to my fellow DS – it’s been a journey I’ll never forget.

"Thanks to everyone that took part and made the show what it is. Really excited about the future and what’s coming this year."