"Celebrity Big Brother" is a reality television show where a group of celebrities lives together in a specially designed house, isolated from the outside world. They are monitored by cameras 24/7, and their interactions are broadcast to viewers. Contestants compete in various challenges and face weekly evictions, with the public voting to decide who stays and who goes. The show is part of the larger Big Brother franchise, which originated in the Netherlands. It typically features a mix of well-known personalities from different fields, including actors, musicians, and athletes, creating a unique dynamic as they navigate life in the house.