Janet Jackson has given a rare interview to Piers Morgan for his CNN talk show.

The soft-spoken singer revealed she used to hate how she looked, so much so that she would self-harm.

“There was a time when I was down and felt so unattractive, and it lasted a very long time, that I would bang my head against the wall,” she said.

Jackson, who is promoting her new book ‘True You,’ also talked about her late brother Michael, saying he was “very sweet, very gentle, incredibly smart” and her tumultuous relationship with her father, Joe.

“I would go over to a friend’s house when Mother would let me go, and I’d see my friends’ relationship with their father, how they’d call him Dad,” she explained. “One time I tried to call [my father] Dad but he said, “No, I’m Joseph, you call me Joseph.” 

Watch some clips from Jackson family home movies here: