'Ultimate Big Brother'
We'll find out tonight which former Big Brother contestants are going back in the house...for one last time
The winner of the final series will be revealed later - and they'll stay on for the two week Ultimate Big Brother special.
Among the favourites from the past ten series tipped to return are Craig Phillips and "Nasty" Nick Bateman.
Contestants from Celebrity Big Brother, such as John McCririck, could also be included.