newest singing sensation, the 10-year-old opera singer. reporter: you never know what s going to come out of a kid s mouth. reporter: mamma mia. from britain s got talent, we got susan boyle. and now from america s got talent, a pintsize kid sinking p pucci. but the minute 10-year-old jackie evancho started, one conspiracy theorist wrote after investigating the claims he concluded jackie s older brother was the national vocalist. we re happy to have a voice drive a stake into the rumors.