Prince sold over 150 million records worldwide, ranking him among the best-selling music artists of all time. He was inducted into the Rock and Roll Hall of Fame in 2004, the UK Music Hall of Fame in 2006, and the Rhythm and Blues Music Hall of Fame in 2016. In 2016, he was posthumously honored with a Doctor of Humane Letters by the University of Minnesota. He won seven Grammy Awards, seven Brit Awards, six American Music Awards, four MTV Video Music Awards, an Academy Award (for Best Original Song Score for the film "Purple Rain"), and a Golden Globe Award. Two of his albums, "Purple Rain" (1984) and "Sign o' the Times" (1987), received the Grammy Award for Album of the Year nominations. "1999" (1982), "Purple Rain" and "Sign o' the Times" have all been inducted into the Grammy Hall of Fame. At the 28th Grammy Awards, Prince was awarded the President's Merit Award. Prince was also honored with the American Music Award for Achievement and American Music Award of Merit at the American Music Awards of 1990 and American Music Awards of 1995 respectively. At the 2013 "Billboard" Music Awards, he was honored with the "Billboard" Icon Award. In 2019, the 1984 film "Purple Rain" was added by the Library of Congress for preservation in the National Film Registry for being "culturally, historically, or aesthetically significant".