A new Britney Spears track, "Gimme More," is expected to hit the airwaves next week, according to sources at Jive Records. The up-tempo cut, produced by Timbaland right-hand-man Nate "Danjahandz" Hills, will appear on Spears' new album, but sources say it has yet to be decided whether it will be the official lead single or simply a setup track.

Spears is known to have worked with J.R. Rotem and Sean Garrett on as-yet-unnamed tracks. "I've got this one record I've been holding for 10 months that everyone has tried to buy, but I stayed with Britney on it," Garrett told Billboard in late June. "I guarantee it will shake up the world. It's uptempo, out of control ... it's wowzers, produced by me and Bloodshy."

In the past year, Spears' personal travails have far overshadowed her music career. But she is rumored to be making an appearance at the MTV Video Music Awards next month in Las Vegas, where she has previously made headlines by kissing Madonna and performing with a giant snake draped across her body.

The new Spears album, which is expected before year's end, is the follow-up to 2003's "In the Zone," which has sold just shy of 3 million copies in the United States, according to Nielsen SoundScan.