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The longtime host of the show won't be back this season.
The holiday special includes fan favorites and guest stars.
Clearly there's a fan favorite on this season of 'America's Got Talent.'
Here's who's gotten a "Golden Buzzer" on 'America's Got Talent.'
The 20-year-old Sal Valentinetti stunned onstage at 'America's Got Talent' Tuesday night with a rendition of Sinatra's "My Way,."