Britney Spears performs secret gig!

Britney Spears has performed an exclusive gig ahead of her ‘Femme Fatale’ album launch.

The singer performed an MTV Special last night at Rain Nightclub at The Palms Casino Resort.

Britney revealed her appearance on her twitter page tweeting;

Looks like my little secret isnt a secret anymore. Whos coming to watch me take the stage TONIGHT at @RainLasVegas at @PalmsLasVegas? –Brit

Spears is due to take to the stage again tonight to officially launch her seventh studio album, ‘Femme Fatale’.

Check out some pictures from the event (taken from Britney’s Facebook Page) below…