De Spelbrekers were a Dutch singing duo who represented the Netherlands in the Eurovision Song Contest 1962 in Luxembourg City with the song Katinka, which finished in joint last place with nul points. Rekkers and Kok met during World War II at a munitions factory in Bremen, Germany, where they were working as forced labour. They formed De Spelbrekers in 1945, as the war ended. Their recording career began in 1950, and they released numerous singles during the decade, the most successful being "Oh wat ben je mooi" which reached #5 on the Dutch chart in 1956.