One celebrity will be sent packing during this evening's live show, and while that person is normally nominated by their housemates, this week is very different.
There is another shock twist in store for the stars, which will see them nominate one another without knowing.
Earlier this week, they were partnered up into super heroes and sidekicks as part of the shopping task.
Tonight, housemates will be told that their loyalty to each other will be put to the ultimate test when they face a nomination dilemma.
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The heroes and side kicks will be put into separate rooms and each given a button.
If the hero presses their button, the sidekick will immediately be put up for nomination while they will be immune.
But, if both the sidekick and the hero press their buttons, the person who reacted the quickest will be safe from eviction.
And, if the celebrities trust each other enough and choose not to press their buttons, they will both receive immunity.
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Stacy will clash with Jessica over the nomination's tonight
Four housemates face eviction but the celebrities who have been nominated will not be revealed to viewers until tonight's show.
When the stars learn the results of the task, some are shocked and begin to discuss the loyalty of the people they're living with.
Jessica Cunningham and Stacy Francis are set to clash over the results, with the singer telling the former Apprentice star to stop playing a game.
Celebrity Big Brother continues tonight on Channel 5 at 9pm.
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