He was merely 13 years old when his talent captivated YouTube viewers as well as celebrities. Greyson Michael Chance owed it to Lady GaGa for his fame today. Born on August 16, 1997, Greyson Chance is the sixth grader who covered GaGa's "Paparazzi" on piano for his school's music festival. When the video was uploaded on YouTube, it received millions of views and his other videos containing his original compositions also got huge hits.