She scored success in the United States in the early 1990s with her albums Kevyn Lettau (U.S. Top Contemporary Jazz Albums peak No. 16) and Simple Life (Top Contemporary Jazz peak No. 6).
Under början av 1990-talet nådde hon framgång i USA med sina album Kevyn Lettau (U.S. Top Contemporary Jazz Albums topplacering #16) och Simple Life (Top Contemporary Jazz topplacering #6).