Elvis, who died in 1977, didn't live to see his grandchildren. If he had lived, he would have had multiple reasons to smile: Lisa Marie had four children — three daughters (including twins) and a son. Lisa Marie had two children with Danny Keough, a musician who was the first of her four husbands.

Lisa Marie Presley's raw memoir "From Here to the Great Unknown" is out now. Ahead of Oprah's Riley Keough interview, these are the biggest reveals.

Riley Keough, the granddaughter of Elvis Presley recalled watching her mother crying on the floor listening to his songs! The actress is set to publish her late mother's bittersweet and insightful memoir!