Britney Spears' 'Femme Fatale' Tour Rehearsal Footage Surfaces

Britney Spears is getting ready for her upcoming summer tour to support her latest studio album "Femme Fatale". In a footage taken by Just Jared from her rehearsal session, the pop singer, baring her toned tummy in blue top, is seen practicing her moves for her song "How I Roll" with several dancers. She is going to start the tour on June 16 at Power Balance Pavilion in Sacramento, CA and run it