Beiruting News

Katy Perry has become the most popular Twitter user in the world, deposing Justin Bieber as the top account on the social network.

Perry now has just over 46.5 million followers on Twitter to Bieber's 46.49 million, ending his nine-month reign as the most-followed user on the service. The buzz around her new album Prism is the main reason for Perry's current social surge.

This comes just nine months after Justin took over the most-followed title from Lady Gaga, following a two-year stint at the top.