The Louvin Brothers

Charlie Louvin and Ira Louvin, the Louvin Brothers, were an American roots music brother duo. They were born Ira Lonnie Loudermilk and Charlie Elzer Loudermilk in Section, Alabama, in the mid-1920s. They changed their names to "Louvin" when they began their musical career. They are best known for having popularized close harmony, a kind of country music. Charlie and Ira are cousins to John D. Loudermilk, a Nashville Songwriters Hall of Fame songwriter.

http://en.wikipedia.org/wiki/Louvin_Br...