Here are all the pictures from tonight's X Factor judges' houses.
The live shows draw tantalisingly closer for the remaining 24 X Factor acts as they jet off to Judges’ Houses in a bid to land a coveted place in the live shows.
Offering a glimpse into the jet set lifestyle that The X Factor winner could have, the four categories travel to glamorous destinations across the world and with just one more chance to impress their mentor, each act will be hoping to convince them that they have the star quality required to reach the live shows.
Tonight we first head to LA with Robbie Williams and the groups.
The remaining six acts in the Groups category are A* made up of Acacia, 15 and Aaliyah, 14, LMA Choir, 18-40 from Liverpool, Misunderstood made up of Stefan, 25 and Jeff, 27 both from London, Panda and Burgundy, 49 and 41 from USA, girl group Sweet Sense made up of Billie 18, Ellie 17, Kezia 15, Gaia 15 and Charlie 18 and boy band Vibe 5 made up of Kieran 22, Jack 17, Jon 18, Blaise 17 and Elliot 18.
Louis Tomlinson then takes the Boys category to Ibiza.
Contestants in the Boys category are Anthony Russell, 28, from Liverpool, Armstrong Martins, 23 from London, Brendan Murray, 21 from Galway, Dalton Andre Harris, 24 from Jamaica, J-Sol, 25 from London and Thomas Pound, 20 from Bridgend.
As always, the judges will be joined by special guest judges.
Louis is reunited with fellow One Direction member and singer Liam Payne, as well as Nile Rodgers a Grammy-winning composer, producer, arranger, guitarist and co-founder of CHIC. Whilst Robbie is joined by pal and award-winning Britain’s Got Talent judge, David Walliams.
As ever, X Factor host Dermot O’Leary will be on hand to congratulate the lucky four, and console those who fall at the final hurdle.
Those who make it through will join Simon Cowell's finalists in the Girls category who were revealed last week.
He chose 19-year-old Bella Penfold from Essex, 16-year-old Molly Scott from County Durham, 20-year-old Scarlett Lee from Surrey and 25-year-old Shan from Croydon as his finalists.
The X Factor airs tonight, Saturday October 13 at 8:35PM on ITV.
The show continues Sunday night at 8PM with Ayda Williams and the Overs.