Following the revelations about Simon Cowell this week, Jessie has also found details about her private life being revealed in an unauthorised biography of her own.
The book claims alleges that the 24-year-old hasn't had a boyfriend since coming out privately at 17.
But the author says Jessie didn't tell her fans because she didn't want to lose her record deal.
“Jessie might have been with boys in the past — but she is 100 per cent gay. Jessie was openly lesbian and didn’t hide it," the author writes.
“She was advised not to come out, though. Certain people thought being bi was trendy, exotic and a fashion statement. It would increase her allure.
“Being gay would alienate people. They knew how important image was and asked her to tone it down a bit.
“There are so many homophobes out and there were fears of a career-damaging backlash.”
Jessie has always insisted she is bisexual.
She said recently: “If I meet someone and I like them, I don’t care if they’re a boy or a girl.”