Kelly Clarkson appears on 'Who Do You Think You Are?' premiere - Video

Kelly Clarkson is the latest celebrity to get a dose of "Who Do You Think You Are?" The "American Idol" alum will be featured in the Season 4 premiere of the TLC series, which airs on July 24.

In this episode, Clarkson follows her mother's family tree and discovers that her great great great grandfather, Isaiah Rose, was involved in the Civil War. He then went on to become a politician who fought for the beliefs he held dear. Check out a clip from the episode above.

Clarkson travels around to Ohio and Georgia on her journey. Also appearing this season are Christina Applegate, Chelsea Handler and Zooey Deschanel. The show airs Tuesdays at 9 p.m. ET.

Photo/Video credit: TLC
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