Kelly Clarkson – Mr. Know It All – Late Night with Jimmy Fallon

Kelly Clarkson ende her week-long promo tour in New York City with a stop at Late Night With Jimmy Fallon, where she once again performed her single, “Mr. Know it All”.

Check it out below:

http://youtu.be/4SfRMJPe5nY

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Founder and editor of mjsbigblog.com, home of the awesomest fan community on the net. I love cheesy singing shows of all kinds, whether reality or scripted. I adore American Idol, but also love The Voice, Glee, X Factor and more!