The Queen's 90th birthday, which was officially yesterday, will be celebrated in Rotorua with a high tea on Sunday.
It has been organised by the city's self-proclaimed "right royal royalist" Barry Jenkins.
"I have always admired Her Majesty and despite her years she continues to do an amazing job," he said.
A life member of the Rotorua Musical Theatre, Mr Jenkins staged a similar event at the organisation's Casa Blanca Theatre to mark the diamond jubilee of the Queen's reign in 2012.
"This time around the venue's to be the Regent Hotel because of the obvious name association," he said.
The high tea will include the singing of the national anthem and the New Zealand national anthem, led by local soprano Evelyn Falconer, with proceedings concluding with Land of Hope and Glory.
"To accompany it there'll be a lot of flag waving just as is traditional at the London Proms concerts," Mr Jenkins said.
The programme will also feature a royal-themed quiz and raffle, with prizes for the best dressed.
Mr Jenkins said despite the event not being publicly advertised it was a sell-out - and there is a waiting list for those who still hoped to attend.