Santa Fe High School shooting survivor has emotional "American Idol" audition: "I lost a lot of friends"

He survived the 2018 Santa Fe High School shooting in Texas. Now, Trey Louis is going to Hollywood to compete to be the next "American Idol."

The 21-year-old singer and mattress salesman went viral after his audition aired on "American Idol" on Sunday. During the audition, Louis, who calls himself "Trey from the Fe," sang the song "Stone" by Whiskey Myers. His performance earned a standing ovation from the show's three judges, Katy Perry, Lionel Richie and Luke Bryan.  

Bryan immediately told Louis, "You've got the perfect voice," and asked him why he wanted to compete for the "American Idol" title. That's when Louis revealed his story.