Justin Bieber reveals secret concert plans

Pop superstar Justin Bieber has delighted fans in Europe by announcing plans for a series of secret concerts.

The Baby hitmaker jetted off from the U.S. on Monday (28May12) to kick off a promotional tour for his upcoming album Believe, and he has promised his European followers a treat when he arrives in Oslo, Norway to start his appearances.

In a series of posts on his Twitter.com page, he writes, "OK. Going to board. Off to Europe! Phase 1 of operation secret concerts!.. Oslo first stop. See u (sic) soon and when I land (singles) Die In Your Arms and Boyfriend will be out!! Countdown and then Bieberblast!!!! Thanks! See u soon. Much love."

Bieber's only planned show in Europe is on 9 June (12) as part of Capital Radio's Summertime Ball at London's Wembley Arena.