A spine-tingling haka performed by a groom's family at a wedding in New Zealand recently is drawing millions of views online.

The video shows the group of mainly men, led by the best man and brother of groom Joel Armstrong, powerfully performing the dance before the bride herself joins in.

Since being shared online Jan. 21, the video has been viewed more than 18 million times.

The performance was captured at The Church of Jesus Christ of Latter Day Saints in Hamilton on New Zealand's north island.

Haka are traditional war dances, cries or challenges performed by Maoris, the native people of New Zealand.

The haka performed at the wedding is called Tika Tonu, which tells the story of a father encouraging his son to overcome his problems.

In the video, groom Benjamin Armstrong and bride Aaliyah Armstrong are noticeably moved before both join in with the performance. A bridesmaid also takes part.