Avid Merrion made his name as TV's most notorious stalker, but Keith Lemon certainly gives him a run for his money in this ongoing series. The Celebrity Juice frontman will be invading more special houses and offering hints to his studio guests. Jonathan Ross, Ruth Langsford and Alan Carr have already made a valiant effort in the series two opener, and this week it's the turn of 2008 I'm a Celebrity winner Joe Swash, gymnast-turned-presenter Gabby Logan and Take Me Out host Paddy McGuinness. It remains to be seen which of them will collect enough evidence to guess the correct inhabitants, but with Leeds' most famous moustachioed guide at the helm, it should be anything but dull