The judge will swap her seat on the panel for the stage as she joins Sigma on the results show to perform their new track 'Coming Home'. Exciting!
Also performing this weekend is American Idol star Carrie Underwood, who will sing new song 'Heartbeat'.
On the last episode of X Factor, viewers saw judge Simon Cowell becoming the first panellist to lose all their acts this series. Anton Stephans was eliminated over Che Chesterman, leaving Simon with no more acts to mentor this year.
Mason Noise was also eliminated at the weekend in a flash vote.
Louisa Johnson, Lauren Murray, 4th Impact, Reggie 'N Bollie and Che Chesterman are the show's final five.