Big Brother will shake up the contest this Friday by adding new housemates after the live eviction.

In an announcement made on Big Brother's official website, it emerged that a mix of men and women would be added during Friday's live show.

However, the addition of the new housemates is more complicated than first thought.

Only one of the new additions will become a fully-fledged housemate after the "usual twists and turns", according to the announcement.