Billie Eilish’s fragile, love-soaked song, “Birds of a Feather,” almost didn’t take flight. In a new interview, the singer ...

In just a few years, Billie Eilish has changed pop music. Along with her brother and producer Finneas, Eilish creates dark, ambient confessionals while merging jazz, emo, and alternative electro-pop.

There’s no doubt “What Was I Made For?” — the song Billie Eilish and her producer brother Finneas contributed to the “Barbie” movie soundtrack — has struck a deep chord with fans. The melancholy ...