Mandy lost her hearing due to a connective tissue disorder.
It's all pretty attractive, I gotta say.
The video of Harvey's performance was posted on the "America's Got Talent" official Facebook page and it had garnerned more than six million views just two hours after it went online. But that didn't stop the musician from pursuing her dream to be a singer.
Mandy was a singer ever since she was four years old, but she took a break from her passion after she lost her hearing.
Mandy Harvey's voice was heard around the world Tuesday night, but her story starts back in a CSU music class.
With her shoes off to feel the tempo through the floor, Harvey performed an original song called "Try" for the judges.
There was not a dry eye in the building, as everyone was moved to tears over this emotional song and performance.
Mandy received a standing ovation mid-performance from a teary-eyed audience and inspired judges.
When Simon Cowell asked Harvey what she was going to sing, she shared that she'd written an original song with a handsome meaning behind it.
"I've done this a long time, " Cowell told Harvey.
"This is the most unbelievable special thing I have seen", Grace wrote in response to a clip of Mandy's audition, "Just magical".
"I never think I'm going to be surprised or amazed by people", Cowell said. "Just the fact that you are you".