Fleur, 26, is hoping to make it all the way in this year's competition, with the help of mentor Simon Cowell, and she is determined to both look and sound her best on stage!
The singer is a real gym bunny and, during a recent session, posed for a photograph before sharing it on Instagram.
In the snap, Fleur is wearing black leggings and trainers teamed with a hot pink crop top. And just look at those abs! Impressive or what?
Chatting to Reveal, Fleur previously revealed that she works out five times a week. No wonder she looks so good!
Meanwhile, she has also been busy training her X Factor roomates and new pals - Cheryl Fernandez-Versini's girls; Chloe-Jasmine Whichello, Stephanie Nala and Lauren Platt.
We wouldn't mind a session in the gym with Fleur too...if she can promise us a tummy like hers!
Watch Fleur's first live performance here: