Calvin Harris has been announced as special guest on Rihanna's record-breaking 'Loud' UK tour this Autumn.
The Global Superstar's 'Loud' tour will now stop in 8 cities across the country, including this phenomenal 10 shows at London's 02.
Calvin Harris, who has been playing DJ residencies across the summer, will provide the warm-up party on all dates of the tour which stops off in Manchester, Glasgow, Liverpool and London from October until December.
The Loud UK tour kicks off at London's O2 Arena on 5 October with the last date scheduled in the same venue for 22 December.
Rihanna has sold over a staggering 300,000 tickets for her UK 'Loud' Tour and has added a 10th and final show at the O2 London on Tuesday 20th December 2011.
The singer said of the collaboration: "Calvin is the perfect fit for the Loud tour. He is going to bring something unique and fun for the fans."
The producer, singer/songwriter already toured with Rihanna in Australia earlier this year after releasing his second album Ready For The Weekend in 2009.
Rihanna has broken the venue's record with ten shows, the longest ever for a solo female artist at The O2 arena since it opened in 2007.
For tickets and full listings see here: Rihanna 'Loud' tickets