2013 has got off to a flying start for global pop phenomenon and teen heart-throb Justin Bieber. Earlier this week he released his new Believe Acoustic album, and he's now also earned himself another Guinness World Records title.

The 18-year-old star has overtaken fellow chart-topper Lady Gaga to be the most followed user on social-networking site Twitter.

When the record was updated, he had 33,682,239 followers of his @justinbieber feed, having pushed ahead of @ladygaga, who on the same day had 33,581,095 followers.

This latest record will surely be a boost for the young singer, whose music video for "Baby" was surpassed as the most-viewed video online in November last year by PSY's "Gangnam Style" which also became the first video online to be viewed 1 billion times.

Bieber also holds a Guinness World Records title for being the first solo artist to have three No.1 albums before the age of 18 (US).

As for Justin's fans, the self-styled "Beliebers" - you can give yourselves a pat on the back, he couldn't have achieved this record without your support and follows!