Watch 'amazing' Grace VanderWaal, 12, rock 'America's Got Talent' finale with original song

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America's Got Talent sensation Grace VanderWaal knocked it out of the park again on the season finale Tuesday night.

The 12-year-old singer and ukulele player once again earned a standing ovation from all four judges after performing her original song "Clay."

Judge Howie Mandel, who sent VanderWaal into the stratosphere when he picked her for his Golden Buzzer, gave her high praise: "Amazing Grace, how sweet the sound," he said. "It's not only a song -- it speaks to you. You are amazing. This is my favorite moment of the night."

Mel B told VanderWaal she was in her "ultimate element tonight," declaring: "You're meant to be here."

Heidi Klum compared her to "the most original diamond, or the rarest diamond, of them all."

See photos of the 2016 "America's Got Talent" judges:

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America's Got Talent judges 2016
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America's Got Talent judges 2016
AMERICA'S GOT TALENT -- Promo -- Pictured: (l-r) Heidi Klum, Simon Cowell -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
Howie Mandel arrives at the "America's Got Talent" Season 11 Red Carpet Kickoff at the Pasadena Civic Auditorium on Thursday, March 3, 2016, in Pasadena, Calif. (Photo by Rich Fury/Invision/AP)
WESTLAKE VILLAGE, CALIFORNIA - APRIL 01: TV personality Heidi Klum (L) and producer/TV personality Simon Cowell speak onstage during the 'America's Got Talent' panel at the 2016 NBCUniversal Summer Press Day at Four Seasons Hotel Westlake Village on April 1, 2016 in Westlake Village, California. (Photo by Frederick M. Brown/Getty Images)
Howie Mandel arrives at the "America's Got Talent" Season 11 Red Carpet Kickoff at the Pasadena Civic Auditorium on Thursday, March 3, 2016, in Pasadena, Calif. (Photo by Rich Fury/Invision/AP)
WESTLAKE VILLAGE, CALIFORNIA - APRIL 01: (L-R) TV personalities Mel B, Heidi Klum and TV personality/producer Simon Cowell speak onstage during the 'America's Got Talent' panel at the 2016 NBCUniversal Summer Press Day at Four Seasons Hotel Westlake Village on April 1, 2016 in Westlake Village, California. (Photo by Frederick M. Brown/Getty Images)
WESTLAKE VILLAGE, CALIFORNIA - APRIL 01: TV personality Mel B speaks onstage during the 'America's Got Talent' panel at the 2016 NBCUniversal Summer Press Day at Four Seasons Hotel Westlake Village on April 1, 2016 in Westlake Village, California. (Photo by Frederick M. Brown/Getty Images)
WESTLAKE VILLAGE, CALIFORNIA - APRIL 01: TV personality Heidi Klum (L) and producer/TV personality Simon Cowell speak onstage during the 'America's Got Talent' panel at the 2016 NBCUniversal Summer Press Day at Four Seasons Hotel Westlake Village on April 1, 2016 in Westlake Village, California. (Photo by Frederick M. Brown/Getty Images)
WESTLAKE VILLAGE, CALIFORNIA - APRIL 01: (L-R) TV personalities Nick Cannon, Howie Mandel, Mel B, Heidi Klum and TV personality/producer Simon Cowell speak onstage during the 'America's Got Talent' panel at the 2016 NBCUniversal Summer Press Day at Four Seasons Hotel Westlake Village on April 1, 2016 in Westlake Village, California. (Photo by Frederick M. Brown/Getty Images)
Mel B arrives at the "America's Got Talent" Season 11 Red Carpet Kickoff at the Pasadena Civic Auditorium on Thursday, March 3, 2016, in Pasadena, Calif. (Photo by Rich Fury/Invision/AP)
Heidi Klum arrives at the "America's Got Talent" Season 11 Red Carpet Kickoff at the Pasadena Civic Auditorium on Thursday, March 3, 2016, in Pasadena, Calif. (Photo by Rich Fury/Invision/AP)
Simon Cowell arrives at the "America's Got Talent" Season 11 Red Carpet Kickoff at the Pasadena Civic Auditorium on Thursday, March 3, 2016, in Pasadena, Calif. (Photo by Rich Fury/Invision/AP)
Simon Cowell meets with a fan at the "America's Got Talent" Season 11 Red Carpet Kickoff at the Pasadena Civic Auditorium on Thursday, March 3, 2016, in Pasadena, Calif. (Photo by Rich Fury/Invision/AP)
Howie Mandel arrives at the "America's Got Talent" Season 11 Red Carpet Kickoff at the Pasadena Civic Auditorium on Thursday, March 3, 2016, in Pasadena, Calif. (Photo by Rich Fury/Invision/AP)
Nick Cannon arrives at the "America's Got Talent" Season 11 Red Carpet Kickoff at the Pasadena Civic Auditorium on Thursday, March 3, 2016, in Pasadena, Calif. (Photo by Rich Fury/Invision/AP)
Heidi Klum poses for a photo with fans at the "America's Got Talent" Season 11 Red Carpet Kickoff at the Pasadena Civic Auditorium on Thursday, March 3, 2016, in Pasadena, Calif. (Photo by Rich Fury/Invision/AP)
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Simon Cowell -- who predicted VanderWaal as the new Taylor Swift after her audition -- envisions a bright future for the preteen.

"People are going to look back at you [and say] you did it in a real way. No gimmicks. It was just you," Cowell said. "You deserve your place tonight. I don't know what's going to happen, but you're going to be there at the end. I can feel it."

VanderWaal has been fiercely original for the entire season, unveiling the self-penned songs "I Don't Know My Name," "I'll Hold Your Hand" and "Light the Sky," and inspiring other ukulele-toting musicians on YouTube to cover her music.

Here is the video for those eager to study the song:


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