At first his musical activities were purely recreational, but by the late 1950s he had become a member of a group called Sun Spot.

Kluger and Schoepen brought Neefs to the attention of record companies, and he was signed to a contract in 1958, releasing his first album in 1960.

[2] In 1969, Neefs was again selected to represent Belgium, with the song "Jennifer Jennings" in the 14th Eurovision, held in Madrid on 29 March.

[4] Neefs continued to enjoy recording success, with the biggest hit of his career, "Margrietje", reaching No.

In tandem with his musical career, Neefs was a presenter of television and radio shows for Flemish broadcaster VRT.