A singer in St. Petersburg, Florida named Emma Robinson started getting big on YouTube about two years ago, because she sounds auto-tuned, but she's not. It's her natural singing voice.
She told the Associated Press it's kind of like yodeling, and it's the only way she can sing. Her cover of "Stay" by Rihanna has gotten more than 2.5 million hits since 2013, and now a video of her doing "Paper Hearts" by Tori Kelly is going viral.
Check them both out below!