The Big Brother housemates are to be told one of them will be given a free ticket to the final - and they will have to choose that lucky person themselves.
Following Friday night's eviction, nominations will be axed and all the housemates will be put up for the public vote to face the boot, before the final of Big Brother 11 on August 24.
However, one of the housemates will be able to escape eviction and Big Brother will give the housemates one minute to choose among themselves who it will be.
Ten of this year's 21 housemates remain, including paraplegic, one-eyed Army veteran Steve, Welsh minister Dave, self-proclaimed Big Brother superfan Mario and Australian John James who is romancing Bristol blonde Josie.
Favourites to win this year are new arrival Sam Pepper and Katie Price lookalike Corin.
After the final, the winner will re-enter the Big Brother house for a further two weeks, joined by past Big Brother and Celebrity Big Brother housemates, to take part in Ultimate Big Brother.