De Havenzangers
... that Dutch singer Henk Pleket performed for around thirty years in the group De Havenzangers, singing songs of sailors and the 1990 FIFA World Cup?
... that Dutch singer Henk Pleket performed for around thirty years in the group <b id="mwB6E"><a href="./De_Havenzangers" id="mwB6I" rel="mw:WikiLink" title="De Havenzangers">De Havenzangers</a></b>, singing songs of sailors and the <a href="./1990_FIFA_World_Cup" id="mwB6M" rel="mw:WikiLink" title="1990 FIFA World Cup">1990 FIFA World Cup</a>?