Grace Vanderwaal is an American singer, songwriter and actress she is known for her distinctive vocals and has often accompanied herself on the ukulele she won American's Got Talent at the tender age of 12 she was born on January 15, 2004 She Is Currently 20 Years Old She Played In Star Girl And Hollywood Stargirl One day your out with family at a restaurant and you see singer and song writer Grace Vanderwaal sitting and eating alone