Daum is probably best remembered as one of the conductors at the Eurovision Song Contest, where he conducted a total of seven entries (five years for Germany and two for Luxembourg). He conducted the entries for Eurovision in 1979, 1980, 1982, 1985, 1992, 1993 and 1994. In 1982 he had the honour of conducting the winning entry for Germany that year, which was sung by Nicole. With the exception of 1993, all the other ones which Daum conducted were all written by Ralph Siegel.