Britney Spears has stunned fans with her music video for new single Womanzer - after appearing naked in a sauna in the sizzling promo.

In the hot new footage the Toxic star opens the video posing totally nude in a steamy sauna, prompting fans to brand the clip her sexiest to date.

And the video is so risque, TV bosses decided to censor the video before it premiered on U.S. news show 20/20 on Friday night - to ensure younger fans didn't catch sight of the sexy scenes.

Spears, who made a triumphant comeback by winning three gongs at the MTV Video Music Awards last month, also plays a sexy chauffeur, a leather-clad, tattooed waitress and a flirty secretary in the video.

Womanizer is the first track to be released off Spears' forthcoming album Circus, which the singer brands "her best work yet".