It was alleged that 20 per cent of Germany’s total record sales in the late 60s was by this young boy who was discovered by Ariola’s West German studio manager Adolf Klyngeld in 1967 and groomed for that territory’s market. He was 11 when he recorded his first hit - a translated revival of ’ sentimental “Mama” which was a number 1 in Germany while the follow-up, also a number 1, “Du Sollst Nicht Weinen” - new lyrics to a Mexican song, “La Golondrina” - was in second place and was destined to hold the record as Switzerland’s biggest selling disc for many years. Its b-side, "Ich Bau Dir Ein Schloss’, topped the Dutch hit parade. Issued in time for 1968"s Christmas market, both the double a-side, “Ich Sing Ein Lied Fur Dich’/'Heidschi Bumbeidschi” (based on a German folk ditty), and the seasonal sold an immediate million copies apiece and became his fourth consecutive chart topper. Though the rather schmaltzy nature of his output did not appeal to many teenagers, middle-aged and elderly consumers ensured that Heintje swamped north and central European charts until his voice broke and he proved unable to sustain the huge success he had enjoyed as a child.
www.heinsimons.com/english/biography.html
The album “Heintje” reached first place in the election of “Most successful debut-album ever”, by RTL-Music.de and Media-Control !! No other artist ever did better than our Hein !!!