America's Got Talent's Grace VanderWaal Performs 'Beautiful Thing' for Live Shows (Video)

Grace VanderWaal plays her ukulele and sings her heart out while performing an original song during the America’s Got Talent quarterfinals on Tuesday (August 23) in Los Angeles.

The 12-year-old singer performed “Beautiful Thing,” a song that she wrote about her older sister Olivia.

Grace went viral with her first performance of an original song and the video of her audition was viewed well over 100 million times.

After her performance in the quarterfinals, judge Howie Mandel predicted that Grace will be bigger than Taylor Swift and become the most successful America’s Got Talent contestant of all time.