First time heard something so pure and beautiful

On 19th April, I tried to finish my homework at this afternoon. I trun on my computer and search some classical opera songs to make me clam and get some inspirations. I searched one of my favorite opera arias called Nessun Dorma. I tried different versions on Youtube and want to get the best one for myself. Then I found one that was sung by a little girl. Before I hear what impressed me, I was curious that how the song sounds if the singer is just a 9 years-old young lady. When the video was playing and I heard her voice, I was shocked. Just like the audiences at that time, I just opened my month without a word. I cannot beleive that voice came from a little girl. Its like a young voice with old soul in it. And that voice with the scene that she wearing a silk cream dress makes people feel that is the angel who is singing! It is so pure and beautiful, and its like there is only she who standing on the stage.