The brother of pop superstar Michael Jackson has revealed that he and his brothers thought the singer was gay.

In his upcoming autobiography, Jermaine Jackson, who gained a handful of Motown hits, claims that in the Jackson 5 era there were fears that their little brother was gay.

He said that at the height of the band’s fame they met lots of women and all eventually fell in love but “Michael, well, he wasn’t interested. We used to quietly say that we couldn’t have a gay brother.”

The book, Legacy: Surviving the Best and the Worst, which is yet to be published, lists a series of alleged revelations about the controversial artist including doubts over his innocence in child abuse cases, allegations of anti Semitism and questions over the conception of his children.