While at Feyenoord, Van Wonderen won the Dutch league in 1999 and the UEFA Cup 2001-02, as the Dutch beat Borussia Dortmund 3-2 in the final at De Kuip.
His best-known hits are "You'll Never Walk Alone" (which is also a favourite on the terraces of Feyenoord's De Kuip), Olympic Games (which he recorded for the "Let The Games Begin" LP which was to coincide with the 1992 Summer Olympics) and "I Can See Clearly Now".