Secret Duets plot
Musical game show featuring nine well-known artists as panelists, four of whom are in action each episode. These four sing duets with a well-known Dutchman who stands in front of them on the other side of a wall, and is thus unrecognizable to them. The challenge for the singing panelist is to discover who this mysterious guest is by guessing after the performance. The member can ask questions to the rest of the panel, and receive various hints, in addition to having heard the voice. During the performances, it gradually becomes clear to the viewers and other panel members who the 'secret singer' is, but this remains unclear to the singing panel member until the wall rises.