Justin Bieber avenges enemy by tweeting his number to 4.5 million fans

Teen Canadian singer Justin Bieber took revenge by tweeting his enemy's phone number to his 4.5 million followers on Twitter.

"Everyone call me 248-XXX-XXXX :) or text," the Daily Telegraph quoted the star as tweeting.

The phone number was not Bieber's but of Detroit-area teenager Kevin Kristopik.

Bieber was reportedly angry at Kristopik for hacking the Twitter account of one of Bieber's friends and using it to get the singer's phone number.

Kristopik had admitted the hacking. "I'm the one who hacked ryan and got justins #," he posted.

Bieber deleted the tweet a few minutes later but thousands of Bieber's followers retweeted the message, and Kristopik received countless phone calls and more than 10,000 text messages.

"Thanks for giving out my # @justinbieber," Kristopik later tweeted.

He also posted a video online of his phone receiving a stream of calls and text messages.