Britney Spears 'Alien' Track Leaks Online
However, producer William Orbit says it's not the right version...
However, Orbit has since taken to Twitter to insist that the leaked tune is NOT the final version.
It's the wrong version of 'Alien' that's out there. Right song, but had wrong chorus notes, (now fixed) on THE version
The producer wrote: "It's the wrong version of 'Alien' that's out there. Right song, but had wrong chorus notes, (now fixed) on THE version."
He then added the comment: "But the stars in the sky look like home, take me home…" - which appear to be lyrics from the track.
Spears recently confirmed the tracklist for her eagerly-awaited album, with the likes of Will.I.Am, rapper T.I. and her younger sister Jamie Lynn all appearing.
Britney Jean is due for release in the UK on December 2.