All of a sudden, we hear a familiar voice singing beautiful harmony in the background.

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Watson was steeped in music as a child, from the time his mother held him in her arms at the Mount Paton Church and he listened to the harmony and shape-note singing of such songs as "The Lone Pilgrim" and "There is a Fountain, " according to a 1998 article in Flatpicking Guitar Magazine by Dan Miller.

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The Georgetown University English graduate was a story consultant on the 2009 documentary "American Harmony, " about competitive barbershop quartet singing, and produced the recent Discovery Channel program "Under Siege, " about terrorism and smuggling across the U.S.-Canada border as well the History Channel series "Madhouse, " on modified race-car drivers in North Carolina.

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The sisters performed with "Patty always singing the lead, Maxene the high harmony and LaVerne the low harmony, inventing a unique blend that came from their hearts, since none of the girls could read music, " according to the official biography released by Eichler.

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