Rihanna has added a fourth date in London to her UK arena tour next year.

The singer will now play the venue on October 14, in addition to shows on October 5,6 and 13.

She will also play Liverpool Echo Arena on October 7 and another date at Manchester's MEN Arena on October 9.

The tour will mark the first time Rihanna has performed songs from her new album of the same name in the UK.

Tickets are on sale now.

Rihanna's 2011 UK tour dates are:

• London, O2 Arena – October 5/6/13/14
• Liverpool, Echo Arena – 7
• Manchester, MEN – 9
• Glasgow, SECC – 10/11
• Birmingham, LG Arena – 15
• Newcastle, Metro Radio Arena – 16
• Birmingham, LG Arena - November 18
• Sheffield, Arena - 19
• Manchester, MEN Arena - 21
• Nottingham, Trent FM Arena - 22

(by Jason Gregory)