The audience have the flag of a country to support appointed to their seat on arrival, and after the performances they vote for their top three favourite items.
They will use their phone to access a voting website.
After the interval, hostess Bettina coordinates live crosses on a television screen, gathering the voting results from each country.
The scoreboard is updated after each country's live cross, and it is not until the last broadcast that the audience know who the winner is.
The winning country then performs their item again.
Director John Drummond says the show is very interactive and funny, with hilarious lines and adult humour.
It is also highly technical, with the likes of video, green screens and showing the live crosses with other countries.
He says there is 17 in the cast and rehearsals - which have been running for about two months - are going very well.
When asked why he would encourage people to come along and check out the show, John had three main reasons.
"One - it will be a fun night out. Two - everyone needs a bit of fun at this time. Three - there's nothing better than live theatre."
The show's musical director is Maria Kapa and the choreographer is Samantha Rowe.
The details
- What: Rotorua Musical Theatre presents Song Contest – the Almost Eurovision Experience
- When: March 25 to April 9
- Where: Casablanca Theatre
- Tickets: www.iticket.co.nz or call 0508 iTICKET (484-253)