Spencer Matthews is among a host of famous faces taking part in '!mpossible Celebrities'.
The former 'Made in Chelsea' star will take part in the BBC One show - set to hit screens from July 14 - alongside 18 celebs, including Vicky Pattison, Russell Kane, Debbie McGee and Anton Du Beke.
Speaking of his experience on the game show, Spencer said: "!mpossible was exactly that - a studio full of celebrities all trying to be the winner. I can't give much away but watch out for the quiet ones."
Each episode will see the famous contestants compete for £10,000 for their chosen charity over the course of six episodes.
Also taking part in the competition is Reverend Kate Bottley - best known for her appearances on Channel 4's 'Gogglebox' - who said the experience was fun but stressful.
She shared: "'!mpossible Celebrities' was so much fun to be part of. The pressure did get to me though and the ticking clock made me make some silly mistakes and say some daft answers."
It was recently announced that the show - which is being fronted by Rick Edwards - would be replacing the popular BBC quiz show 'Pointless' over the holiday period.
A spokeswoman said: "Following the popularity of the last three series of 'Impossible' in the early afternoons, we are looking forward to giving more viewers the chance to watch the hit quiz at 5.15pm on BBC One."