Grace Vanderwaal Profile | Contact details (Phone number, Instagram, Twitter)– Grace VanderWaal is a singer and ukulele player who won season 11 of America’s Got Talent in 2016. In 2018, she was cast as the titular character in Stargirl. Grace was three years old when she first started singing and she later began writing her own music at the age of 11. She first caught the judges’ attention on AGT after she performed her original song “I Don’t Know My Name.” Grace saved up her own money to purchase her first ukulele for her 11th birthday. She was inspired to take up the ukulele by a family friend and by Tyler Joseph.