Justin Bieber has confirmed that his 'Believe' tour will hit countries all across the globe.

The teen star has already announced dates for North America and the UK as he looks to promote his new album 'Believe'.

However, the singer took to Twitter to announce that the tour will also visit a number of continents including Europe and Asia.

He added that the tour will also hit the Middle East and South America, amongst other locations. He said:

"Oh yeah...and just agreed to routing for EUROPE, RUSSIA, MIDDLE EAST, ASIA, AUSTRALIA and NZ, South America, and S AFRICA BELIEVE TOUR dates."

Bieber meanwhile also confirmed that director Jon M. Chu will be overseeing the 'Believe' tour, with the singer posting a video of Chu 'signing' a contract to confirm his role.

Watch Jon M. Chu agree to direct Bieber's 'Believe' tour below: