MUMBAI: A day after the announcement of a special limited edition of her seventh album Unapologetic, R&B star Rihanna is all set to host '777 Tour' encompassing seven different countries in seven days.

Commencing from 14 November, RiRi is said to board Boeing 777 twinjet along with an international press corps of over 150 journalists and group of fans from the Rihanna Navy. The details of the tour is yet to be announced but the tour is said to be held in UK. The tour details will be uploaded soon on the singer's official site.

The singer's seventh album is making a mark as the album's first single 'Diamonds' has reached to fifth position on the Billboard Hot 100 charts which adds to her 23rd top 10 hit . RiRi is also promoting the album by making fourth appearance as the musical guest at the 'Saturday Night Live,' on 10 November. Rihanna will also perform at the 2012 MTV Video Music Awards following which the singer is all set to kickoff her promotional Diamonds World Tour on 8 March 2013 in New York.