A big twist is arriving in Big Brother this week as housemates face Annihilation Week, and it's as drastic as it sounds, with somebody being evicted every night over the next five days.

There will be no public vote either, it will be decided by the housemates themselves. Big Brother gave them the message yesterday;

"This is Big Brother. Housemates, Big Brother has some important news. Your time in the Big brother house is about to change forever. Today, an unprecedented annihilation begins that places each and every one of you at risk of eviction."

Big Brother continued: “Housemate numbers will be decimated, but there are no public votes. Who survives is down to you. Over the coming days, Big Brother will set a number of tasks that you will all take part in. Each will end with the most serious consequence of all for one person."

Those that leave won't be getting the big fanfare or interview with Emma Willis either, although it is thought she will be chatting to them on Friday night's show.

There are currently 12 remaining housemates - Alex Cannon, Andy West, Chelsea Singh, Evelyn Ellis, Hughie Maughan, Jackson Blyton, Jason Burrill, Jayne Connery, Lateysha Grace, Laura Carter, Ryan Ruckledge and Sam Giffen.

Who do you think won't make it through the week?