A Christian Yodeler

Here is a link for Margo Smith, a Christian yodeler.

A definition from Wikipedia:
Yodeling (or yodelling, jodeling) is a form of singing that involves singing an extended note which rapidly and repeatedly changes in pitch from the vocal or chest register (or "chest voice") to the falsetto/head register; making a high-low-high-low sound. The English word yodel is derived from a German word jodeln(originally Austro-Bavarian language) meaning "to utter the syllable jo" (pronounced "yo" in English). This vocal technique is used in many cultures throughout the world.