Horse and rider are set to take the stage at HOY for the first time tomorrow. They are said to be the first international combination to travel from offshore to compete, said a HOY spokesperson.
The Friesian is ranked 244 in the world and is classified in grand prix class - a class reserved for Olympic level horses.
Django's results from Horse of the Year will go towards his world title ranking which, Mr Janjic said, should open more doors for the duo.
Mr Janjic said he and Django were very excited to be in New Zealand despite the bad weather.
"This is the first time we have competed internationally and it is very exciting. I am really pleased to be representing my country and this is the first time I have had to do it overseas.
"The weather here is actually better suited for the horse because he is a Friesian and they are used to a colder climate, so that is great," he said.
"I am mostly here because I want to show people what a beautiful horse he is. Every time we ride past people, they end up with a smile on their face, he makes people happy and I really enjoy that."
Mr Janjic said Django was an example of a horse that had attained huge success despite his breed and upbringing.
"It just shows that it doesn't matter what breed the horse, if they are trained right, they can go really far."
Horse and rider have ridden alongside big equestrian names, Olympic equestrian competitor Mary Hanna and World Equestrian Games competitor Maree Tomkinson.
The horse will return to Australia next Monday alongside Mr Janjic, following his final dressage competition on Sunday.