His tour of mystery celebrity homes continues tonight as he gives the star panel cheeky clues as to the identities of the famous homeowners.
Catherine Tyldesley who plays Eva in Coronation Street, presenter Dave Berry and all-round legend Terry Wogan will all be doing their best to guess whose house it is.
What treats will Keith pull out from behind the closed doors of the celebrity homes? They're a brave bunch - we certainly wouldn't want him poking through our drawers!
Through The Keyhole, ITV, 9pm