The 42-year-old is down to perform her single, Get Outta My Way, on Sunday but songs by Madonna will be showcased on Saturday night's leg of the show.
Each week, show bosses bring in a host of glittering stars to perform on the Sunday night results show. Previous weeks have seen Rihanna, Usher, Bon Jovi and Katy Perry - to name a few - take to the stage and blow judges away.
But this weekend's theme will involve Kylie joining the show on the week they're celebrating her rival's music.
A show insider told Metro: 'It's all a bit awkward, actually. The contestants will be doing a Madonna and Michael Jackson themed week despite Kylie's big showing the next night.'
Next week fans can look forward to boyband week as JLS, Westlife and Take That all take to the X Factor stage to perform.