Elvis Presley's teenage granddaughter has sparked reports she's set to be a young bride just like her mother and grandma by sporting a new ring on her wedding finger. Model Riley Keough is refusing to talk about the ring other than to confirm to friends it was a gift from boyfriend Ryan Cabrera. The daughter of Lisa-Marie Presley, who wed Riley's father when she was just 20, has been dating pop star Cabrera, 25, for over a year.