'America's Got Talent' Singer Sounds 'Exactly Like Whitney Houston' In Powerful Ballad Audition

A contestant on America's Got Talent dazzled audiences on Tuesday night with a voice unlike any we've heard in a generation.

"Ever since I was a little kid, I knew I was made to sing for lots and lots more people. I'm a bit nervous just to sing for you guys and you," Glennis Grace said before she took the stage, giving a nod to the crowd.

Grace shattered the speakers with a rendition of Whitney Houston's "Run to You," and got immediate praise from the judges.

"It's almost like you sounded exactly like Whitney Houston," judge Mel B, a former Spice Girl, said. "I want you to take Whitney Houston, embody her, but then I want to see more of you."

Simon Cowell, notorious for his harsh criticisms and blunt feedback, praised Grace's performance.

"I'm just sitting here thinking you look amazing, you sound amazing," he said. "I feel like I'm looking at a star already." judge Howie Mandel called it an "incredible performance."

"The only reason you're not a star yet is because we haven't seen you and we haven't heard you," Mandel told Grace. "How lucky are we that we get to watch you explode on this stage tonight. Not only did you make yourself proud, but you made your son proud."

The Holland native has performed Houston tributes in the past. All four judged gave Grace the green light to pass to the next round.

Grace later tweeted that her night was an "unreal experience" and a "dream come true."

After her spot, Grace said her 11-year-old son served as her inspiration for going on AGT.

"He believes in me so much that he's inspired me to do 'AGT,'" she said. "It's the most important thing to have his support — otherwise, I wouldn't do this. I want to show my son you always have to go for your goals and your dreams, because dreams come true."