Britney Spears' seventh studio album named Femme Fatale was released on March 25th, 2011. Including dance-pop and electropop styles, Britney made a fresh-sounding and fierce dance album. Britney started working on the album in 2009 when she wrote that on her Twitter page and she finished it 2011 when it was released. She told: "I've poured my heart and soul into this album over the last 2 years. I've put everything I have into it. This album is for you, my fans, who have always supported me and have stuck by me every step of the way! I love you all! Sexy and Strong. Dangerous yet mysterious. Cool yet confident! FEMME FATALE." and the album has won the hearts of her fans, as well as the hearts of music critics who gave mostly positive reviews for this amazing work by an iconic singer.