The judges chuckled on the song selection of this girl. But her performance dropped them out of their chairs!

Isn't this amazing how sometimes the biggest voices come out of the smallest body?

Beau Dermott is a sweet 12 years old girl, but when she came to appear on the popular show Britain's Got Talent, she definitely managed to fill the big stage.

Understandably, Beau was excited and very nervous when she went on stage in front of the large spotlight and the pressure level only went up when the judges chuckled as they heard what song she was about to do.

Beau chose to sing the challenging song "Defying Gravity's" from the musical "Wicked".

But despite the pressure, Beau gave a performance that they will never forget.

Her song selection requires a wonderful voice and extraordinary empathy — I never thought that a 12-year-old girl can show off both in such a magical way!