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According to the Mr Know It All Songfacts, the song was debuted on August 30, 2011 during a live webcast hosted by Clarkson on her official website. During her Livestream chat Clarkson discussed why the song was chosen as the album's lead single. "We picked 'Mr. Know It All' because it was unlike any song that, really, I've ever come out with," she said. "Secondly, just because it's very different from a first single for me. Usually we go… read more

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Lyrics

Mr Know It All
Well ya think you know it all
But ya don't know a thing at all
Ain't it something y'all

Kelly Clarkson - Mr. Know It All Lyrics

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