In 1961 : de : Heinz Gietz heard her singing during a performance in the Stuttgart Liederhalle and gave her a record contract . She also played in the German television series '' Game with Fours '' . In 1961 several tracks were recorded without success . She collaboarated with Paul Kuhn . " Every Day I Love You a little Bit More " was the most successful . She was also successful in her home country , the Netherlands . In 1961 she represented the Netherlands at the EuroVision Song Contest singing " Wat een dag " ( " What a Day " ) and finished in tenth place . In 1963 she sang " Nur bei dir " ( " Only with You " ) at the German Schlager Festival in Baden-Baden but failed to qualify for the final . In 1964 she released " We Can Only Write Letters " . The song remained for weeks in the charts . After her contract expired in 1967 , she performed in Los Angeles but returned soon after to Europe . In 1970 she married Joop de Roo , who advised her to change her music genre . She switched to jazz and was successful in the Netherlands and later in Germany . She has appeared with jazz musicians and in 1981 recorded a jazz album . In 1980 she was recognized as the best soloist at the Euro-American Nordring radio festival
EuroVision Song Contest
Eurovision Song Contest 1961
Greetje Kauffeld