The former judge, 26, was in Bermuda this week filming for the singing competition, where she is thought to be jointing Louis Walsh for his judge's houses round.
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Singer Tulisa looked amazing in a simple white bikini, showing off her tanned, toned body, and a blue and white fringed kimono.
Following her 'year from hell', in which she was accused of brokering a drug deal for an undercover reporter, and the court case collapsing, it was rumoured last month that Tulisa will help 61-year-old Louis pick his final four for the live shows.
READ: LOUIS WALSH ON TULISA'S DRUGS TRIAL – "IT WAS COMPLETE ENTRAPMENT, I HOPE HE GOES TO JAIL"
Louis is said to have been given the groups this year which, if true, would make sense as he has managed successful bands including Westlife and Boyzone, and Tulisa enjoyed success with her own band N-Dubz.
Tulisa was a judge on the X Factor for two years, mentoring Little Mix to victory in 2011 and helping them become the first group to win the show.
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This week Tulisa wished the foursome a happy third birthday, posting a picture to Instagram of the girls during her own judge's houses round in Cyprus.
Last week it was reported that Cheryl Fernandez-Versini is mentoring the girls, Mel B has the boys and Simon got given the over-25s, which he is said to be unhappy about.
The first round of auditions will air on ITV on 30 August.