TRAGIC Whitney Houston had a secret affair with Michael Jackson's brother Jermaine.
The romance explains why 56-year-old Jermaine Jackson, a married man at the time, was so distraught by pop diva Houston's death in a Los Angeles hotel last month.
A friend of both singers confirmed the relationship, saying, "Her death has devastated Jermaine because of the history between them. No one understood the scale of his grief because they didn't know what they shared."
Houston's No.1 hit Saving All My Love For You echoed the story of her secret affair with the Jackson 5 star.
The blockbuster ballad is about a woman having a romance with a married man - as Jermaine Jackson was at the time - and waiting for him to be hers.
Houston even hired a Jermaine Jackson lookalike for the song's video. It features the romeo's wife keeping an eagle eye on his mistress.