Kelly Clarkson took to her website to say that she would release the audio of 'What Doesn't Kill You (Stronger)'.

She said that she wanted her fans to hear the real version:

"Hey ya'll - I heard that some versions of "What Doesn't Kill You (Stronger)" started showing up online. My new album 'Stronger' is out in 3 weeks (Oct 24) and I want you to hear the real thing! Check it out!"

The first single from album, 'Mr. Know It All', was released last month and the video hits out at rumours that circulate about her.  

Check out the official audio for 'What Doesn't Kill You (Stronger)' and her video for 'Mr. Know It All':