The singer who has documented her fitness journey on Instagram has spoken to an Australian tabloid and announced she's dropped an impressive 36 kilos!
Earlier this year, New Idea reported that the star had begun her transformation.
She revealed she’d shed 17kg during her time on I'm A Celebrity Get Me Outta Here... – and is believed to have dropped a whole lot more.
"Casey is in the best shape of her life and is really committed to losing even more weight," a friend of the singer told the magazine.
Check out her before and after below:
The star has also shared snaps on social media some delicious healthy meals she's prepared.
Fans have taken to Instagram to leave messages of congratulations to the star.
"You look amazing! Good on you girl. Be proud of yourself x," one wrote.
While another commented: "WOW 🔥 soooo amazing & well done, inspiring you are 😍."
Congratulations to the singer!