At the age of fourteen Kevyn left her native Germany for the United States, where she finished high school while supporting herself cleaning houses and studying dance on the side. By seventeen the singing bug had gripped her and she was ready to make the fulltime commitment to becoming a singer. She started working with Peter Sprague singing Jazz, R & B and Brazilian music on the streets of Del Mar, California.
Kevyn sang with local San Diego groups until she was discovered by the famous Brazilian legend, Sergio Mendes. She toured and recorded with Sergio for eight years, as she developed her own very personal vocal style.