The "Gebroeders Ko" are a partycouple from the Netherlands. Their real names are Ton Koopmans and Gerard Koopmans from Raamsdonksveer. Before they broke through (2002) with their party music they were construction workers.
These are photos from concerts where Gebroeders Ko played, so they may be of other bands that played the concert as well.
538 Koningsdag 2022 Apr 27, 2022 Breda, North Brabant, Netherlands Uploaded by Irisvdl