Britney announces O2 arena dates

Britney Spears is to make a two-day stop in London as part of her 2009 world tour.

The singer will play at the O2 arena on June 3 and June 4, the only European shows in the worldwide jaunt.

Tour promoter AEG's Rob Hallett told the BBC that it will be a "very special" concert, which will take its theme from Spears's new LP Circus.

He said: "We're creating a musical circus. Expect to see jugglers, dancers, tattooed ladies and acrobats."

Meanwhile, Spears will be travelling to the UK this weekend to appear on The X Factor.

Circus, which features Spears's current single 'Womanizer', is due for release on December 1.