Britney Spears has confirmed she will perform a "surprise" concert in Las Vegas Friday night at the Palms Casino Resort Rain Nightclub, which will be filmed for an upcoming MTV special.

"Looks like my little secret isn't a secret anymore. Whos coming to watch me take the stage TONIGHT at @RainLasVegas at @PalmsLasVegas? -Brit" she posted on Twitter Friday afternoon.

Her manager, Adam Leber, tweeted: #BritneySpearsPalms, which briefly became a Twitter trending topic.

According to People.com she'll hit the stage twice: once at 8 p.m. Friday in a ticketed event, and again at midnight for a performance that will be open to the public. The "Jersey Shore's" Pauly D will DJ.

Spears' seventh studio album, "Femme Fatale," drops Tuesday.