Billie Eilish has achieved that rare form of pop stardom that really everyone aspired to. She is both globally famous, hugely successful and somehow still a mystery. Who is she? No one really knows. And that's a terrific thing.

Watch Billie Eilish's haunting new music video for "Birds of a Feather," from her Hit Me Hard and Soft album. Experience a powerful visual metaphor of love’s invisible force.