Britney Spears has added four extra dates to her October/November UK tour due to unprecedented demand.

Two extra shows in London - October 28th at the O2 Arena and October 31st at Wembley have been added, as well as November 3rd in Newcastle and November 5th in Sheffield.

Tickets go on sale July 1st at 9am for the tour that has already kicked off in the States - with print media describing it as her best tour yet.

More information can be found by following this link.