Britney Spears, second from right performs onstage with dancers at the Bill Graham Civic Auditorium in San Francisco, Calif., on Sunday, March 27, 2011.
Britney Spears, second from right performs onstage with dancers at the Bill Graham Civic Auditorium in San Francisco, Calif., on Sunday, March 27, 2011. (Jose Carlos Fajardo/Staff)