A segment of Britney Spears' upcoming single 'Womanizer' was briefly leaked online last Friday.

MTV News reports that the 37-second static-filled segment was briefly posted on Nashville radio station 107.5-FM The River's website before being taken down; the clip could still be found elsewhere afterwards.

'Womanizer' is said to have a disco feel with "a sing-song chorus".

Spears' new album, 'Circus', will be released on 2 December, her 27th birthday.