Seven famous faces will take part in Celebrity Fat Fighters, a three-part series from TLC which will challenge them to lose weight and kick bad lifestyle habits.
The full lineup is:
Diags, TOWIE star
Stevi Ritchie, former X Factor and CBB contestant
Jennifer Ellison, actor and TV presenter
Sandi Bogle, Gogglebox star
Lateysha Grace, The Valleys and CBB star
Danny Miles, comedian
Riley Carter Millington, EastEnders actor
The celebrities will be under the control of boot camp owner Galia Grainger, who is described as an "outspoken Russian taskmaster with an uncompromising, straight-talking" style.
They'll be put on an extreme diet of just 400 calories per day, combined with more than eight hours of intense and at times unconventional training. (Don't try this one at home, people!)
Galia is also determined to break down their celebrity egos.
TLC's Clare Laycock says: "Our seven brave celebrities are in for a very unique brand of shock therapy as they bid to take back control of their body and mind. Each one has a personal or professional goal that they are hoping to achieve with the help of Galia's always punishing, sometimes unorthodox and ultimately rewarding regime.
"Expect sweat, tears, hunger pangs and unlikely friendships but no treats at this retreat for the rich and famous."
Celebrity Fat Fighters airs January 2017 on TLC.
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