A boy named Levi performed a haka for his great-grandmother's 81st birthday.

Among New Zealand's indigenous Māori people, the haka is a traditional war dance performed on the battlefield to intimidate the enemy. It's still used in ceremonies, and some New Zealand teams enjoy doing them on the sports field. But apparently, it's also used to melt hearts, like when three-year-old Levi here does it. At the same time, his commitment is genuinely intimidating. If he were ten years older, or if there were four more of him, I wouldn't be smiling. I'd be running the other way.

Sources: Levi's World!