The 'Don't Cha' hitmakers - including Nicole Scherzinger, Ashley Roberts, Kimberley Wyatt, Jessica Sutta, Carmit Bachar and Melody Thornton - will be getting the band back together for a special performance as Simon Cowell's talent show comes to an end on November 30.
Judge Louis Walsh confirmed the exciting news on ITV's 'Lorraine' on Monday (25.11.19) as he simply said: "The Pussycat Dolls are the guest! There's an exclusive for you."
The hugely popular girl group went on hiatus in 2010, and it was recently reported that Nicole was keen to get them back together for 'The X Factor' to kick off a huge world tour.
An insider previously said:
"It's going to be their first big performance of the reunion and will be extra special for Nicole because of her role in the show.
"Having the Pussycat Dolls perform is a real coup for Simon Cowell and he has told Nicole to pull out all the stops to make sure their routine gets people talking.
"The girls know how much this performance means to Nicole so they're going all-out. It will be really special."
This weekend's final will see Jenny Ryan, Max and Harvey, V5 and Megan McKenna competing for the crown.