Jantje Smit was 4 yeas a member of the Dutch catholic boys and girls choir "De zangertjes van Volendam" for four years, possibly as a mezzosoprano. He was discovered as a pop singer by Jan Keizer from BZN, a well known Dutch pop group.
In 1997 he had his first success in the Netherlands with the song "ik zing dit lied voor jouw alleen". Up until 2000 he was known as "Jantje Smit. Now as an adult, Jan Smit is a succesful pop singer. In late 2007, Jan recorded a Christmas CD with his former choir, De zangertjes van Volendam, called Kerst in Volendam.