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Justin Bieber talks about new album and Twitter delights

30 April 2012 Last updated at 09:06 BST

Teen pop idol Justin Bieber drew huge crowds upon his arrival in London last week for a secretive event where he unveiled tracks from his new album Believe.

The 18-year-old spoke to the BBC's Susanna Reid about why he does not want songs from his album to leak before its June release, his hopes for the future and his huge following on Twitter.

Boyfriend music clips courtesy of Island Records