Jackie Evancho Performs on 'Britain's Got Talent' Finale

11-year old singer Jackie Evancho performed on Saturday's finale of "Britain's Got Talent."

Evancho, who was the runner-up on "American's Got Talent" last year sang her signatures song, "Nessun Dorma." You can watch the performance here.

The finale ended with a surprise as 24-year-old singer Jai McDowall beat Ronan Parke, who was believed to be the favorite. McDowall won by 2.5 percentage points.