Yodeling is a form of singing that involves rapid changes in pitch between the chest voice and the head voice. It originated in the Swiss Alps and is often associated with the traditional music of the Swiss and Austrian cultures. Yodelers use a unique technique to create a distinctive sound that can carry over long distances, making it useful for communication in mountainous regions. The practice of yodeling has spread beyond its Alpine roots and can be found in various music genres, including country and folk music. Famous yodelers, such as Jimmie Rodgers and Dolly Parton, have popularized this vocal style, showcasing its versatility and appeal in modern music.