her face is everywhere, yet we know little about jackie evancho or how she got that voice.'s kristen welker is now filling in the blanks for us tonight. ♪ >> reporter: america couldn't believe its ears when this very big and seemingly seasoned soprano voice came out of a very small girl on nbc's "america's got talent." 10-year-old jackie evancho performing puccini. ♪ >> i can't believe that from this tiny body this huge mature voice. >> i can't put her talent into any context. it's so unexpected and so unique. >> reporter: her youtube audition video which has gotten more than a million hits landed the 5th grader from the suburbs of pittsburgh on the national stage. >> i started singing when i was 8 years old because we went to see "phantom of the opera" so i started singing around the house. >> reporter: there were questions. is her talent too good to be real? >> no contestant is allowed to lip synch. it doesn't happen, but i want to prove it. is there any way you could just sing a note right now? [ applause ] ♪ >> reporter: the draw to compete on this stage is huge. on any

she is jackie evancho.fter her performance last night on "america's got talent" the young opera singer from pittsburgh has gone viral on the web. while she hasn't won the competition, she's already booked at carnegie hall in december. >>> up next, a legend returns. johnny carson's entire "tonight show" archive has a new home. hours and hours of laughs forever. >>> finally tonight, just look who's going digital -- the late, great johnny carson. more than 3,000 hours of him and "the tonight show" on the web forever, now playing on a computer near you. late night television these days is a pretty crowded neighborhood. [ drumroll ] >> heeere's johnny! [ cheers and applause ] >> but there was a time when one man ruled the night. >> i think you ought to run for president. >> johnny carson hosted "the tonight show" here on nbc for 30 years, tucking generations of americans in at night, until he signed off for good in 1992. >> everything comes to an end. nothing lasts forever. >> now johnny is forever -- online. ♪

. >>> next -- the youtube root to stardom. ,,,,,,,,,,,, ♪ >>> that is 10-year-old jackie evancho, a hugend she's not the only one to get notice online. ♪ >> reporter: 12-year-old gracen chant was the surprise star at his sixth grade talent show in oklahoma. ♪ his lady gaga tribute was meant for a few hundred people in his school gym, but now on youtube he's been watched more than 30 million times. talk show host ellen degeneres saw it and had an abilitct. >> it's crazy how many hits this has had. >> reporter: the preteen is now working on his album in los angeles. you've gone from plays in your grade school gym to living here in los angeles making an album. >> yeah. >> reporter: what do you think of that? >> it's crazy. but it's been so much fun and this is my dream and i have always wanted -- always wanted to do this with my life. >> reporter: justin bieber is living the dream. he and his equally famous hair strut alongside usher in beeber's latest movie video. bieber has sold more than 5 million albums. yet, just two years ago he was on youtube, singing on his couch. ♪ justin timberlak

and that amazing voice belongs to 10-year-old jackie evancho from pittsburgh, pennsylvania. knocked the socks off the judges on nbc's "america's got talent" with her incredibly mature voice. i happened to see a moment of this yesterday, ann, and i thought it was taped at first. it's so mature and so beautiful coming out of a 10-year-old. >> exactly. i think a lot of people are in disbelief over last night. people's jaws just dropped. >> yes. >> you can't believe it. >> she looks like an angel, too. i understand she's already got a gig at carnegie hall in december. >> exactly. >> she's already a star. coming up in a moment, a new twist. steven slater's dramatic exit down jetblue plane's emergency slide. we'll talk to a passenger who said she had her own encounter with slater at the beginning of the flight. plus we'll hear from his ex-wife who is here for a live interview. >> also this morning a man suffering from scary symptoms discovered he was actually living with a pea plant that had basically taken root in his lungs. we're going to meet him coming up this morning to find

named jackie evancho. and she stole the show. >> what did she sing?. >> oh, my god, wow. i can't believe that kid. >> such a mature voice. it's almost like she's lip-syncing, you're looking around for susan boyle somewhere, you know? >> that's astonishing and to be singing an aria like that, as opposed to -- >> "hit me baby one more time." >> i wonder if she'll win the whole thing. >> piers said i know what's going to happen, we'll wake up tomorrow and america will be going crazy for a little girl. he was right. what are we going to do about your pop tarts? >> first of all, i love pop tarts, i don't care. i don't care if they're bad for you. i go to the vending machine, if they're in the vending machine, which they are a lot, i get the blueberry. well pop tarts has decided to open a place in times square, right? >> yeah, because we need all that we're all in such great shape in america, we need more of that. anyway, they created a pop tarts sushi. >> i think they should have the m&ms thing across the street. >> this is a pop tart filling and a sugary