WATCH: Kids gatecrash BBC news interview with professor

A BBC News interview with an expert on South Korea on Friday morning has quickly become the hottest viral hit of the day.

Professor Robert Kelly somehow managed to keep his composure as a small child wearing sunglasses struts into the room in the background.

While the in-studio interviewer lets him know what's happening in the background, he keeps talking while gently pushing his kids away with his left hand.

And that was only the beginning.