Los Angeles (CNN) -- Janet Jackson would bang her head against a wall because she felt "so unattractive," the pop star told CNN's Piers Morgan. Jackson, in an interview Tuesday on CNN's "Piers Morgan Tonight"  talked about her struggles with weight and body image over the years, her relationship with her father and dealing with the passing of her brother Michael. "There was a time when I was so down and felt so unattractive and it lasted for a very, very long time," Jackson said, "that I used to -- I used to bang my head against the wall." The banging would be hard and "the person that I was with, my ex-husband at the time, I mean, he'd have to stop me," she said.
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Her former husband would have to stop her head banging, Jackson says
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Her father told her, "I'm Joseph to you," she says
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Jackson is promoting a self-image book, "True You"
"You call me @placeholder," she said her father told her.