Jessie J is reportedly "living in fear" after a teenage stalker claimed to have broken her own leg to look like the star.
The fan obtained The Voice UK coach's private details and sent a picture of her injured leg, stating that she purposely hurt herself so she could wear a cast like Jessie J had to last year.
Jessie J has increased security after the fan, who cannot be named for legal reasons, also sent her a series of disturbing messages, including: "I will do anything to be just like you."
"She's horrified this happened. Jessie's a really, really sensitive and kind girl who loves keeping in touch with her fans. But this incident was just too much for her and she ended up getting really frightened and upset," a source told The Sun.
"She was sad that a fan hurt herself to look like her - but she was also scared for her own safety. Now Jessie's on The Voice and getting bigger and bigger, she knows it is time to review security and the risks to her.
"She loves her fans but these things are unavoidable in this day and age. It happens to all pop stars as they become bigger. It's one of the downfalls of fame. Jessie would prefer it wasn't this way."
Jessie J revealed last year that she will always suffer from arthritis after injuring her foot in a stage fall.
