In 1955 she met her future husband , guitarist Jørgen Ingmann . The couple married in 1956 and performed as the duet Grethe og Jørgen Ingmann . Together they won the Eurovision Song Contest 1963 representing Denmark with the jazz waltz " Dansevise " ( Dancing tune ) with music by Otto Francker and lyrics by Sejr Volmer-Sørensen . It was the first entry performed by a duo to win the Contest and also the first Scandinavian winner
Eurovision Song Contest 1963
Eurovision Song Contest 1963
Grethe Ingmann