KELLY CLARKSON - 'Mr. Know It All' live on Leno.

Written by Shahlin Graves

Thursday, 22 September 2011 15:25

In support of her new single 'Mr. Know It All' - the lead-single from her upcoming album fifth studio album, 'Stronger' - KELLY CLARKSON performed live on 'The Tonight Show with Jay Leno'.

Watch Clarkson performing 'Mr. Know It All' live below...

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