Escolanía Del Colegio De San Antonio De Madrid

Mike Sammes Singers

Tennessee Ernie Ford

Blume

Eddy Arnold

Glen Campbell

Johnny Nash

Manolo Escobar

Jake Thackray

Mormon Tabernacle Choir

The Medical Mission Sisters And Friends

Burl Ives

La Pandilla

Ralph Carmichael

Melanie

The Longines Symphonette

Les Humphries Singers

Peter, Paul & Mary

Ómar Ragnarsson

Monique Miville-Deschênes

Luisita Tenor

Ed Ames

Renate Und Werner Leismann

The New Christy Minstrels

Donovan