Britney Spears shows off major cleavage in a turquoise body suit in her new "Work Bitch" cover art, which she revealed via Twitter on Thursday, Sept. 12 Credit: Courtesy of Britney Spears

Britney's back! Britney Spears unveiled her highly-anticipated cover art for "Work Bitch," her first single off her upcoming album, via Twitter on Thursday, Sept. 12, leaving very little to the imagination. The 31-year-old megastar displayed her assets in a cleavage-baring outfit for the shoot.

"4 days people! Go call the Po-Lice! Go call the Governor! #WorkB," Spears tweeted alongside the sexy photo. The "Ooh La La" star gives attitude to the camera as she wears a low-cut sequined turquoise body suit accented with a feathered boa. The blonde bombshell -- sporting a shoulder-length hairstyle -- holds onto a vanity table with a mirror that reflects her slender backside. The backdrop for the art is in Las Vegas, where she's currently shooting the single's music video.

The pop star has been anything but shy gearing up for the upcoming release. Four days earlier, Spears shared a stunning photo of herself in a matching turquoise bikini and high heels on the set of her music video. "#WorkBitchDay2," she tweeted. She previously wrote on Sept. 8, "Hot day on set... ;) A little dirty, little flirty, danced my ASS off. Stoked for tomorrow!" 

Spears has been working hard to get in top shape for her upcoming residency in Las Vegas. "The [Vegas] performances won't be simple -- they'll be a massive party from start to finish," she told Shape magazine in its May issue. "And to pull this off, I have to be in top condition and running at full speed."

"Work Bitch" -- the first single from her eighth album -- will premiere worldwide Monday, Sept. 16. It will be available on iTunes at 12:01 a.m. on Sept. 17.