When the X Factor contestants travelled to four different places to find out if they will get through to the next round we assumed that the judges took the wannabes to their respective houses.
The groups visited Simon Cowell in Marbella, the boys went to see Dannii Minogue in Ibiza, the girls flew to Los Angeles to meet Sharon Osbourne, while the Over-25s were taken to Dublin by Louis Walsh.
But Walsh revealed on the Graham Norton Show that the houses featured did not belong to any of the judges.
He said, "That wasn't my house. That wasn't Sharon's house or Dannii's house or Simon's house either.
"Sharon sold her house to Christina Aguilera, so that was a rented house. Mine was a rented house. I wouldn't have had all that rubbish in my house - the stuff on the walls and the lights and all that."
A spokesperson for the ITV show said: "The contestants are invited to a house. We call them the judges' houses, not the judges' homes.”
"We have never said they are the judges' real homes and it has been this way for the past four years."