Nigeria’s Burna Boy is a man of the people, and it shows in his videos, which eschew glitz for something a little more real: the everyday glory of girls round the way or the casual, playful grace of a house party. Why the quirky, unexpected imagery? On the surface he’s fusing Afropop, dancehall, and rap into a seamless, danceable whole; underneath, he’s preaching the uplift of an entire continent.