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Britain's Got Talent's Julia Carlile, 15, leaves festival-goers in tears as she dances for the last time before undergoing 175,000 scoliosis operation funded by Simon Cowell

She will undergo a life-changing operation on her spine in just over a week's time, funded by TV's very own Simon Cowell.

And Britain's Got Talent star Julia Carlile, 15, left festival-goers in tears as she performed for the last time before travelling to America to undergo her operation.

The teenage dancer – who suffers from the painful condition scoliosis – wowed the crowds as she delivered a routine alongside the rest of her MerseyGirls troupe at Formby Festival in Liverpool on Sunday.

One last dance: Britain's Got Talent star Julia Carlile, 15, left festival-goers in tears as she performed for the last time before travelling to America to undergo her operation for scolosis, which has been funded by Simon Cowell

One last dance: Britain's Got Talent star Julia Carlile, 15, left festival-goers in tears as she performed for the last time before travelling to America to undergo her operation for scolosis, which has been funded by Simon Cowell

Despite reports alleging that music mogul Simon had offered to pay for her surgery, neither Julia nor the talent show judge had confirmed the claims – until now.

Speaking to the Liverpool Echo, she confessed: 'Simon came and spoke to us backstage.Just walking off stage and he said he was paying for it and I couldn't believe it.

'Annie came up to me and said Simon wants to speak to us. He said we did a really good performance.'

He's a big softy really: Julia revealed that Simon approached her backstage during her stint on Britain's Got Talent and told her he would pay the 175,000 required for her surgery

He's a big softy really: Julia revealed that Simon approached her backstage during her stint on Britain's Got Talent and told her he would pay the 175,000 required for her surgery

The operation will set the 57-year-old star back 175,000, and will see Julia travel to New York with her family on Sunday.

The teen will then travel to New Jersey will she will receive the surgery that has restored her hope in being able to dance again.

The procedure, called vertebral body tethering, involves screws being fixed along a cord inside the back.

It takes just 6 weeks to recover compared to 6 months and is reversible if it doesn't work.

Optimistic: The teen will then travel to New Jersey will she will receive the surgery that has restored her hope in being able to dance again

Optimistic: The teen will then travel to New Jersey will she will receive the surgery that has restored her hope in being able to dance again

Unsurprisingly, emotions were running high as the dance group – who are made up of Julia's friends, as well as her older sister Alice, 17 – weeped after performing together for the last time before the operation.

Opening up about her tear-jerking final performance, Julia confessed: 'It was quite sad. I'm not going to see any of the girls now before my surgery. We were all crying and saying bye to each other, hugging and crying. we are really, really close friends.'

MailOnline has contacted Simon's representative for comment.

Emotional: Opening up about her tear-jerking final performance, Julia confessed: 'It was quite sad. I'm not going to see any of the girls now before my surgery'

Emotional: Opening up about her tear-jerking final performance, Julia confessed: 'It was quite sad. I'm not going to see any of the girls now before my surgery'

ABOUT THE AUTHOR celebrityrave

Journalist, writer and broadcaster, based in London and Paris, her latest book is Touché: A French Woman's Take on the English. Read more articles from Agnes.

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