Tonight Celebrity Big Brother host Davina Mccall will enter the house to surprise the housemates during the live show.
Davina's entrance into the house will correspond with the end of the head of house challenge which has seen Terry Christian nominate a number of his fellow contestants for eviction.
Thus far, Terry has nominated Ulrika Jonsson for being the housemate with the most inflated ego and Lucy Pinder for being the least talented after her performance in the talent showcase task on Monday.
During the live show, the celebrities will discover Terry's secret nominations and, according to Channel 4, will have to make a "difficult decision".
Tonight's live show will broadcast at 21:00 GMT.