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.

In her posthumous memoir 'From Here to the Great Unknown,' Lisa Marie Presley opened up about her whirlwind relationship and marriage with Michael Jackson, who told her he was "still a virgin" when they first got together romantically.

Lisa Marie's posthumous memoir From Here to the Great Unknown has been completed by her daughter Riley Keough, who used her late mother's audio tapes to help her finish off the project. The book was released this month and in it, Lisa opens up about the aftermath of her father Elvis's death when she was nine, and its effect on her.