Britain's Got Talent star reveals amazing transformation after losing 17 stone
She reached the semi-finals in 2013
Last updated 28th Dec 2017
A Britain's Got Talent star from 2013 has amazed fans with her amazing weight-loss transformation, after losing 17 stone. Rosie O'Sullivan weighed nearly 30 stone when she reached the semi-finals, however since then she has lost more than half of her body weight.
The 23-year-old had the size of her stomach reduced with a gastric sleeve operation and is now unregconisable as she has revealed in a photo on Instagram.
Earlier this month Rosie posted a before and after photo on Instagram showing her dramatic transformation. She captioned the photo, 'I had 2 dreams when I was a little girl to become a singer and to be healthy and be able to shop in River island. A 3 year transformation, so looking forward to the last stage this month so I can finally wear a pair of shorts with no tights. 😃🎤✌🏼👊🏼 '.
Talking about her time on Britain's Got Talent she told a national newspaper, "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."
A year after appearing on Britain's Got Talent Rosie had the gastric sleeve fitted. The singer described the weight as "falling off" after her operation, losing a massive 13 stone in the first year since having it fitted.
Just a couple of days ago Rosie also posted a photo of her and her boyfriend Wayne Silver next to their Christmas tree, again showing off her dramatically different figure, wearing a Christmas jumper.
Since her appearance on Britain's Got Talent Rosie attended the London College of Music. Next year she is due to travel to Nashville when she will release her debut album and appear on American TV, she also revealed she will be filming a documentary in a recent post.
Now take a look at other reality TV stars who have undergone dramatic transformations:
Rylan Clark-Neal
Rylan Clark-Neal during his time on The X Factor.
Rylan Clark-Neal
He's now ditched the long hair and looks great with a dark beard.
Kylie Jenner
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Kylie is now in her 20s and is mum to daughter Stormi Webster. Being a parent hasn't stopped her forever changing up her look though.
Charlotte Crosby
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In 2021, Charlotte looks as youthful as ever and is back to her brunette locks.
Megan McKenna
Megan McKenna during her appearance on Britain's Got Talent in 2009.
Megan McKenna
Now a country-pop singer and without fillers, Megan is now touring the world looking even more glamorous than ever before!
Holly Hagan
A red haired Holly Hagan in 2011...
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In 2021, Holly is now showing off her new chic look.
Khloe Kardashian
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Now a mum-of-one, Khloe looks super elegant with longer curly blonde hair.
Chloe Sims
TOWIE's Chloe Sims with long dark hair in 2011.
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Ten years on, Chloe looks young and fresh with blonde hair and a more toned down look.