Britney Spears and her family were in the Halloween spirit as they posed in costume on Monday (October 31) in London, England.

The 29-year-old pop star posted the photo to Google+, which included her little men, Jayden and Sean, in their ninja and batman outfits.

‘Loved celebrating Halloween in Londontown with my family!’  Britney wrote on her Twitter account, along with the picture.

Britney is currently performing in London for her Femme Fatale tour.  On Sunday the pop queen gave Joe Jonas a lap dance during the show.  Check out the stripper dance in the video  below.