Rihanna has further extended her UK arena tour, which is due to take place next year.

As well as an extra show in London, the singer will now play a second date at Birmingham's LG Arena on October 18.

She will also play Sheffield Arena on October 19 and another date at Manchester's MEN Arena on October 21.

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
• Liverpool, Echo Arena – 7
• Manchester, MEN – 9
• Glasgow, SECC – 10
• Birmingham, LG Arena – 15
• Newcastle, Metro Radio Arena – 16/21
• Birmingham, LG Arena - 18
• Sheffield, Arena - 19

(by Jason Gregory)