Britain's Got Talent star Rosie O'Sullivan has showed off her incredible weight loss, after dropping 17 stone.
Since she appeared on the beloved talent show back in 2013, Rosie, who was a self confessed 'foodaholic', lost more than half her body weight. Impressive stuff.
Fans of the show will remember that she reached the semi-finals of the competition with her musical abilities...
The singer won around the judges with her amazing voice, but she now might be a little unrecognisable for some viewers following her transformation.
Rosie had a gastric sleeve operation to help her shed pounds, reducing her stomach to a quarter of its usual size.
The 23-year-old star revealed that she was nearly 30 stone when she appeared on the competition, and has had £20,000 of weight loss and excess skin removal surgery.
Following the show, she embarked on a mission to follow her singing dreams and lead a healthier lifestyle.
Speaking to The Sun, Rosie said: "When I appeared on BGT I was nearly 30 stone.
"I was hot, sweaty and struggled to walk up stairs, and the costume department had to make dresses for me as it was impossible to get trendy clothes in a size 28.
"I hit a real low and I told my parents I wanted weight loss surgery after seeing an advert online."
According to Rosie, the weight 'dropped off' as soon as she underwent the weight loss operation.
She said: "When I had my gastric sleeve op in 2014 surgeons also cut out the part of the stomach that makes the hunger hormone ghrelin - and since then the weight has dropped off."
Rosie was left with a lot of excess skin following her weight loss, meaning that she underwent several operations in order to feel more confident with her body. She explained: "Even when I put jeans on I felt like I had to tuck the skin from my legs in to my jeans.
"It looked like there were stretched bags at the tops of my legs, I was embarrassed and I knew that I had to do something about it."