SUSAN Boyle shocked Britain's Got Talent fans as she revealed her secret health battle as she made a surprise appearance on the show that brought her to stardom.
The superstar singer made the revelation after appearing as a surprise guest during the final of the ITV talent contest.
Having duetted with X Factor star Lucie Jones on the song that made her a star, I Dreamed a Dream, she opened up to hosts Ant and Dec about her fears that her illness may have prevented her from 'ever performing again'.
Susan admitted that last April she suffered from a minor stroke.
It left her questioning if she would ever be able to sing again.
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The 62-year-old told the audience: "It feels great [to be back] - it's extra special for me actually because last April I suffered a minor stroke .
"And I thought I wouldn't get back on stage and I have done it."
It is believed to be Susan's first performance since her secret health battle.
Show judge Simon Cowell thanked her for making a return to the stage and insisted that the show owed a lot to the Scottish star.
He admitted he was aware of Susan's health and was left stunned by her pitch perfect performance.
Susan's appearance on the show was kept closely under wraps for tonight's final.
She joined the cast of Les Mis for a stunning live performance.
Comedian Viggo Venn won the contest in a shock result.
Ant asked a surprised Viggo how he felt, and that he had "won the hearts of the nation" and Viggo joked he had also won Simon's heart.
