Justin Bieber is headed to South Africa as part of his Believe world tour.

The 18-year-old star announced on Twitter that he had added South Africa to his list of tour dates.

"oh yeah...and just agreed to routing for EUROPE, RUSSIA, MIDDLE EAST, ASIA, AUSTRALIA and NZ, South America, and S AFRICA BELIEVE TOUR dates," he tweeted yesterday (3 July).

Although no dates have been announced yet, Bieber's tour currently stretches to March 2013, so his South African performances are expected to take place during the course of next year.

No South African concert promoters have yet commented on the news.

The singer was last in South Africa in September 2010 when he visited the country for a short holiday ahead of a concert in Hawaii.

Bieber's new studio album, Believe, has exploded to No. 1 in 30 countries, including the US, UK, Canada, Australia and Brazil. Released in the U.S. last week, Believe has taken the No. 1 position on the Billboard album chart and is the biggest debut of the year.  

Although the Baby hitmaker has been promoting the album with a series of shows across Europe, the Believe tour officially kicks off in Glendale, Arizona on 29 September 2012.

Bieber and his manager Scooter Braun have also announced that Step Up 3D director Jon M Chu will be the creative director for the series of concerts, which they say will be the "greatest show on the planet".