More than 139,000 people had joined the Facebook group “Danmark synger for dronningen” (Denmark sings for the queen) by Wednesday, pledging to sing for the queen on Thursday, April 16.
“When corona has closed the official party – we have to mark the day ourselves,” the organisers of the singing said.
“At 12pm we sing on the streets and roads, on balconies, out the window…wherever we may be,” they added.
On March 12, Queen Margrethe II, who remains a popular figure in the country, cancelled her 80th birthday celebrations “in light of the spread of COVID-19 and the consequences for society”.
The queen, who has been on the throne since 1972, also addressed the Danish people in a televised speech last week.
She called on the Danes to “create new hope in a difficult time”.