Britney Spears has finally released the first single off her forthcoming comeback album. The single Gimmie More is an up-tempo, club track featuring heavy sampling, auto-tuning and Spears trying to sound as sexy as possible with many moans, groans and squeals. Spears also turns the sass up to an almost campy level, declaring "It's Britney, b---h" over the opening notes. The song was produced by Danjahandz, who even included a sample of his voice giving a call out to himself. The producer told MTV the song is "about feeling good, celebrating womanhood." Yes, Spears does seem to have been celebrating that lately. Spears is rumoured to be readying her first performance of the song for the MTV Video Music Awards on Sept. 9 and has been working with magician Criss Angel on her choreography. Angel will reportedly guide Spears in and out of a series of mirrors, making it appear like she's vanishing and reappearing, a snitch tells the New York Daily News. Members of Spears's dance group will reportedly be involved in a complicated number that will involve them being strung up in harnesses, making it appear like they are flying. Spears's new album is due for release on Nov. 13, a rep tells People. The first single was not meant to be released yet, but after appearing on perezhilton.com and TMZ.com, the Spears camp decided to make the release official moments later on New York radio station Z-100's website. Spears was also hired to host the opening of LAX nightclub Las Vegas on Aug. 31. It seems even two years after she's released anything, Spears is still getting paid. According to count documents filed by ex-enabler Kevin Federline, Spears' average monthly income is $737,868 U.S., the Daily News reports.