Not surprisingly, Rihanna's Diamonds UK Tour for summer 2013 is selling so fast that more shows have had to be announced at two of the locations. Manchester's Arena will host a second show on 13th June while London's Twickenham Stadium will also have a second show available for 16th June.

We will have tickets for both of these extra shows from tomorrow (Friday 23rd November) for Manchester and Saturday 24th for London. Priced from around £35 upwards and available from 9am.

The initial Manchester and London dates are now sold out, but her other June 2013 UK shows in Cardiff, Birmingham and Sunderland are still available at similar prices - but also selling fast.

Since 2005, Rihanna has released a million-selling album every year, with the exception of 2008 and even then she issued a couple of hit singles to keep the profile going. It's hardly surprising to learn that she's sold over 80 million units worldwide and has almost as many followers across her various social websites. Undaunted by this invasion of privacy, the singer will continue her annual trend of albums by releasing her seventh later this month - and supporting it with a massive UK tour next year. "Unapologetic" followed 2011's #1 smash "Talk That Talk" by appearing on the shelves this week.