Katy Perry breaks down in tears and shouts that the United States has 'failed us' during a school-shooting survivor's audition on 'American Idol'

By Edward Era Barbacena 

Singing auditions can get emotional on American Idol, but emotions reached an all-time high on Sunday night after a school shooting survivor auditioned for the judges.

Trey Louis, 21, performed in front of Katy Perry, Luke Bryan and Lionel Richie and it was his story of why he was there that led Perry to break down in tears.

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The mattress salesman from Santa Fe, Texas sang Stone by Whiskey Myers. Bryan described Louis' voice as "perfect" and then proceeded to ask him why he wanted to be on American Idol.