Britney Spears "Without Autotune" Song Leaks

A "vocal warm up" of Britney Spears' 2013 album track 'Alien' has gone viral after being leaked online.

It's not often raw audio is released to the public, but YouTube user 'seekcover' seems to have got hold of it.

Grammy Award winning producer William Orbit who worked on the track with Britney Spears has responded to the leaked audio saying "Warming up is essential if you’re a pro, as it is with a runner doing stretches, and it takes a while to do properly…"

"…Whomever put this on the internet must have done so in a spirit of unkindness, but it can in no way detract from the fact that Britney is and always will be beyond Stellar!"

William's Orbit's full statement on Facebook can be read below:

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'Alien' has not been released in the UK. Below is a recording of the finished product.