Britney Spears performed two surprise live shows in Las Vegas on Friday night as part of an upcoming MTV special.
The singer, who releases her seventh studio album 'Femme Fatale' on Monday, performed tracks from the LP including 'Hold it Against Me', 'Till the World Ends' and 'Big Fat Bass' at Rain Nightclub in the Palms Casino Resort.
"Looks like my little secret isnt a secret anymore. Whos coming to watch me take the stage TONIGHT at @RainLasVegas at @PalmsLasVegas? (sic)," Spears teased on Twitter prior to the show.
Following the show, Spears said on Twitter: "It feels good to be on stage again!"
