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If you're yet to watch the series, you're in for a treat - the show follows a group of individuals who each move into their own, separate apartment in a block of flats.
They can only communicate with each other through a social network, known as The Circle. The least popular 'player' is then voted out by the group.
However, in a very modern twist, players can choose to be someone else entirely on The Circle, leaving everyone guessing just who is who - and who to trust.
The latest edition marks the very first time celebrities have played The Circle, with a group of famous faces coming together to raise money for Stand Up To Cancer.
While some of the celebrities are playing as themselves in the game, others are catfishing as another celebrity identity altogether, hoping to convince the other players that they are the real deal.
While Denise Van Outen, Saffron Barker and Duncan James will all be entering The Circle as themselves, a number of our celebs are donning disguises while playing the social media game.
Reality stars Sam Thompson and Pete Wicks will be teaming up to play as Countdown brainbox Rachel Riley, while radio presenters Rickie Haywood-Williams and Melvin Odoom will be posing as The Voice UK coach Will.i.am.
Elsewhere, Loose Women regulars Kaye Adams and Nadia Sawalha will pretend they are the ultimate diva - the GC herself, Gemma Collins, while Dancing on Ice star and rapper Lady Leshurr will play as Big Narstie and RuPaul's Drag Race UK favourite Baga Chipz pretends to be Kim Woodburn.
Rounding off the line-up is Charlotte Crosby, a latecomer into the game, who will enter The Circle posing as Peter Andre.
This edition of the game will see suspicions heightened and game-playing galore as the celebs compete for the title of most popular player.
The series was filmed in autumn last year, with the celebrities having no idea who was catfishing and who was keeping it real.
As always, host Emma Willis will be overseeing proceedings and dropping a few bombshells along the way.
After this six-part special concludes, a brand new series of The Circle, with regular civilians, will launch on Channel 4.
The celebrity series is in aid of Stand Up To Cancer, a joint national fundraising campaign from Cancer Research UK and Channel 4 that brings the UK together to speed up progress in life-saving research. To get involved donate at channel4.com/su2c.
Featured Image Credit: PA Images
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