Veerman was at the cradle of BZN in 1965 and was the face of the group until 1974. In those early years, the band was still far from the later eel sound with which BZN gained national fame. Under the leadership of Veerman, the group brought firm beat and rock music, with which she caused a local furore.
Within Volendam he was known under the nickname ‘Jan Kies’.