The modestly dressed underdog was 47 years old and didn’t fit the mold of your typical Hollywood star.

But once Boyle parted her lips and began to sing, that laughter quickly transformed into thunderous applause.

Boyle now looks happier and healthier than ever, but the journey to get there wasn’t easy.

Susan Boyle smiles during SiriusXM event

The decision to get healthy was thrust upon her when doctors discovered the singer had throw in 2 diabetes.

The scary diagnosis changed everything for Boyle.

Her doctors were adamant that she begin making big changes in her life to help manage her condition.

Susan Boyle at book signing and America’s Got Talent

This is one of the major changes Boyle’s doctors asked her to make.

“I needed to stop eating sweeties and cakes,” she disclosed toThe Mirror.

Boyle continued, “It’s the bane of my life.

Susan Boyle smiling on the red carpet in 2018

I had to lose the weight for my health.”

“But now she is very much following doctor’s orders and has cut the sweets out.”

“And I haven’t been eating any bad foods anymore.”

Besides walking, Boyle seems to get her exercise in with a little shaking and shimmying.

As suggested by her doctors, Boyle cut out many sugary, fatty foods from her diet.

The singer has since swapped out the processed sweets for something much healthier to munch on.

“I eat a lot of fruit now,” she confirmed to The Mirror.