Who Do You Think You Are?: Josh Groban

42mAired 2015-03-15

Singer Josh Groban traces his ancestry to Germany and discovers a relative who was a deacon, music teacher and well-known astronomer.

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Who Do You Think You Are?: Josh Groban

Julie Chen

Josh Groban

Angie Harmon

Sean Hayes

Tony Goldwyn

America Ferrera

Bill Paxton

Melissa Etheridge