Billie Eilish is reviving a controversial haircut ... The style is one of many inspired by wildlife, with wolf hairstyles and jellyfish cuts having also spent some time in the spotlight.

Butterfly haircuts include swooping curtain bangs and symmetrical layers. And though they were popularized on long hair (see: Sabrina Carpenter, Matilda Djerf) they work just as well on short.

Billie Eilish fans can probably recite the lyrics of “Birds of a Feather” line by line, but the truest among us know that the Grammy- and Oscar-award-winning singer-songwriter also runs a ...