With acts like fan and judge favorite Michael Ketterer not winning it all, social reactions were mixed.
She had reached the final through a string of impressive performances and during the first leg on Tuesday was described as a "superstar in the making" by judge Howie Mandel. The two Facetimed as Garth presented Michael with the song written just for him.
But it just wasn't enough for Ketterer to take the top spot in a season where Talent fans have almost revolted against the number of singing acts. Michael Ketterer stood out not only because of his voice but also for being a pediatric nurse and father of six kids.
Electric violinist Brian King Joseph, whose incredible remixes blended classical and modern pieces into a groovy fusion, impressed fans enough to clinch third place this season.
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Cowell and the other judges encouraged him to step up his game and add new tricks each week, and Lim bravely accepted the challenge with a final act that also featured his piano skills. "You've got to show your personality, you've got to be a showman".
Speaking to the MailOnline, Tom Storey said the United Kingdom "doesn't get her", adding that the family was "confident she will do well in the US".
After one of the most intense competitions yet, Boston magician Shin Lim took home the million dollar prize and a show in Las Vegas.
Cowell also said that even if she didn't win, he would sign her to a record deal, so this may not be the last the public hears from the teen.
Simon Cowell loved Michael Ketterer from the moment he watched him perform during the America's Got Talent auditions - so much so, that he even gave the singer his Golden Buzzer on the show.