Transcript for 'American Idol' contestant reveals he is Santa Fe High School shooting survivor
[CALM PIANO MUSIC] - (SINGING) Is this true-- far gone? Man, y'all better sit down, man. Y'all better sit down.
- (CRYING) I hope that you remind people that we have to change because I'm scared, too.
- It's terrible, Katie. It's horrible.
I posted a video on social media. I was pushed to do so by my girlfriend. And it blew up. I woke up one morning, and I'm sitting at 17,000 likes. And a couple of hours go by and I'm at 117,000 likes.
[CALM PIANO MUSIC]
- I remember being at the fieldhouse. You an see LifeFlight and ambulance. And you just see kids going back and forth to the ambulance and ambulance leaving. You don't know who those kids are.
It does mean I get to shine a brighter light on my talent. It does mean I get to represent my friends that I lost. And it's an honor. It really is.
This transcript has been automatically generated and may not be 100% accurate.