Justin Bieber wreaks revenge on hacker by tweeting phone number
Hacker allegedly labelled Bieber a 'dick' following online spat
Bieber is alleged to have published Kevin Kristopik's mobile phone number on Twitter, encouraging his followers to call up the phone.
He is alleged to have written: "Everyone call me [phone number removed] :) or text."
Although the message has now been deleted, many fans copied it from Bieber's Twitter and phoned it, believing it belonged to the singer rather than Kristopik. Gossip website Gawker.com reports that Kristopik has since been deluged with texts and phonecalls from Bieber fans.
Kristopik also allegedly tweeted in response to the incident, although his account has now been deleted.
Regarding Bieber, he is said to have written: "I never asked for it, @justinbieber is a dick."
Kristopik apparently hacked Bieber's friend Ryan Butler's Twitter account in July.