London, Dec 8 : Pop diva Britney Spears has added six extra dates to her comeback tour in London.

The Womanizer star will now plays a total of eight shows at the London O2 arena- her only European shows.

The previously announced dates were on 3 and 4 June, and the extra dates are 6, 7, 10, 11, 13 and 14 June, reports the Mirror.

The 27-year-old is also said to be trying to get Sir Elton John to share the stage with her at the O2 arena.

The singer may further shake a leg with former beau Justin Timberlake and Madonna in the US tour leg. (ANI)