LATEST! Britney Spears sings Lady GaGa

It’s been revealed Telephone was originally offered to Britney, and now a demo has surfaced after a recording company leak

It's been revealed Britney Spears turned down Lady Gaga's latest single Telephone, after a demo recording of her singing the song was leaked.

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Reports suggest Lady G originally wrote the song for Britney's Circus album, but the track was canned after Britney turned it down.

But not before recording a demo, which has now surfaced after a leak at the recording company.

And Britney fans have been listening to the track in their thousands.

Music producer Rodney Darkchild Jerkins spoke about the incident on Twitter.

‘Not sure who leaked Britney Telephone,' he Tweeted.

‘Just listened and yes it's the demo, not a mixed version. I will not leak a mixed version. I am respecting Britney and Jive wishes.'

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