Kelly Clarkson – “Mr. Know It All” – Tonight Show With Jay Leno – VIDEO

A glamtastic Kelly Clarkson graced the stage of the Tonight Show with Jay Leno tonight to sing her fab new single. “Mr. Know It All.”

As usual, Ms Clarkson sounds fantastic. We loves her. Watch a sparkly Kelly perform below.

http://www.youtube.com/watch?v=gTDxCGAQSZs

About mj santilli 34841 Articles
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!