This photo was taken after rehearsing for a new number for 'The Circus Starring Britney Spears' tour. She's giving us a little peace sing with the dancers. Brit is currently touring in Europe, so it is expected to be unveiled on this leg of the tour. Which song do you think it will be? Maybe a song from 'Circus'? We'll have to wait.Labels: Breaking News, New Song, Rehearsals, The Circus Starring Britney Spears, Tour