JoJo was once told to "lose weight fast" or risk not having her album released by her former record label.

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JoJo Talks New Music at 2015 MTV VMAs


The 'Leave' hitmaker - who is gearing up to put out her first album in 10 years, 'Mad Love' on October 14 - has opened up about feeling messed up "psychologically" after being pressured to shed the pounds she didn't need to lose.

Jojo. Photo: Getty Images.

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In an interview with Popsugar, she revealed: "Here's something that I agreed to do that ended up messing with me psychologically. I was under a lot of pressure with a company I was at previously and they wanted me to lose weight fast.

"So they got me with a nutritionist and had me, like, on all these supplements, and I was injecting myself - this is a common thing 'the girls' do all the way - it makes your body only need certain calories, so I ate 500 calories a day. It was the most unhealthy thing I've ever done.

"I felt like, 'If I don't do this, my album won't come out.' Which it didn't! So it's not like it even worked!"

However, the 25-year-old pop beauty soon put the weight back on, but now she's happier within herself and has learnt not to follow other people's opinions.

Photo: Getty Images.

She said: "I listen to other people's opinions. Listening and following are different things. I think listening and showing respect to people you respect . . . it works for me. What you think about yourself and the decisions you make is what's most important."

RELATED: Erin Heatherton opens up about her struggles with body image

JoJo's new studio album 'Mad Love' will be released on Atlantic Records and is the follow-up to 2006's 'The High Road'.

- Bang Showbiz

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