Kelly Clarkson rocks the Live Results Show – The X Factor 2011 Live Results Show 3 – itv.com/xfactor

The X Factor: Finalists take note, Kelly Clarkson knows a thing or two about winning a singing competition and going on to be a worldwide superstar – she’s sold 22 million singles worldwide and won two Grammy awards. Relive her performance on the X Factor stage singing her latest single, Mr. Know It All. See more at itv.com