Ding-a-dong " ( original Dutch title : " Ding dinge dong " , as it was introduced in the titles when broadcast ) was the title of the winning song in the Eurovision Song Contest 1975 . It was sung by Teach-In , representing the Netherlands , and was written by Dick Bakker , Will Luikinga , and Eddy Ouwens . The song reached number 1 in both the Swiss and the Norwegian Singles Chart
Eurovision Song Contest 1975
Eurovision Song Contest 1975
Ding-a-dong