Video: Toddlers' passionate haka becomes viral hit In the the video, which was posted on YouTube by Savern Reweti, the children whose average age is two years old give an impassioned performance stamping their feet, waving their arms and shouting. There are thousands of Haka, performed by various tribes and cultural groups throughout New Zealand. The best known Haka is called Ka Mate popularised by its performance the All Blacks rugby union team before matches. The video has been viewed over 70,000 times since it was posted to the video sharing site on June 23.