The internationally acclaimed pop star, whose fifth album 1989 will be released on 27 October, will perform her new single Shake It Off during Sunday's live show.
SCROLL DOWN FOR VIDEO
Taylor Swift sings The Last Time on The X Factor in 2013
The 24-year-old singer has performed on the live show for the last two years, singing her hit single We Are Never Getting Back Together in 2012, and The Last Time in 2013.
Also on Sunday's live show will be RnB star Pharrell Williams, who will perform new tune Gust Of Wind.
After several weeks of auditions, boot camps, and time spent at judge's houses, the 12 finalists will get to perform live for the British public on Saturday.
Taylor Swift performs in 2012
Meanwhile, Louis Walsh's Groups are Blonde Electric, The New Boy Band and Only The Young while Mel B decided that Andrea Faustini, Jack Quickenden and Paul Akister would make her final three acts.
With the Boys' group proving to be firm favourites to win, the pressure is on for the hopefuls to impress at the live shows next Saturday.