A 15-year-old girl has become victim of an international Twitter hate mob after she was retweeted by Justin Bieber.

Last month Courtney Barrasford, from Hampshire, tweeted: "Not really a fan of Justin Bieber but his acoustic album is really good!"

This got a retweet from the man himself, prompting envious vitriol from some of his 34 million followers.

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[Justin Bieber booed as fans are forced to leave early after he appears on stage TWO HOURS late at 02 gig (that's way past bedtime...) ]

Barrasford was soon receiving messages from the star's fans- also known as 'Beliebers'- calling her a "whore" and saying "go kill yourself".

@iLaYdA tweeted at both Barrasford and Bieber, asking: "You RT (retweet) that and u don't even know I exist and I'm a belieber I can't I want to die kill me I can't AAAAH."

And another fan of the 19-year-old pop star wrote: "I am a Belieber of him since 2009 and he didn’t notice me. And you’re not even a f*****g fan. You get noticed. OMG (Oh my God)."

Another wrote to Bieber: "U notice her n she’s not even a fan. I am but you won’t notice me :) Can anyone hear me crying?"

But it wasn't all ill feeling. Some Beliebers offered Barrasford support.

@BelieberFann tweeted: "Peace & Love to you from a fan of Justin Bieber!," and @CassainityBiebs- whose Twitter biography calls Bieber and his ex-girlfriend Selena Gomez her "idols"- tweeted: "Wow I'm sorry for the way some of Justin's fans are treating you. There are some good ones tho.. I hope you're ok!"

Courtney said: "I came back from a drama class where everyone had been going on about how good Justin Bieber’s acoustic album was. So I went on to YouTube to listen to it and then put my comment up.

"About ten minutes later my friend sent me a message to say she had noticed something on Twitter. It wasn’t too bad at first. But then it started to get worse as more people found out."

[Justin Bieber booed as fans are forced to leave early after he appears on stage TWO HOURS late at 02 gig (that's way past bedtime...) ]