There is no one cooler than Billie Eilish. From the moment she became a superstar at age 14 for her hit single “Ocean Eyes,” Eilish has been a groundbreaking innovator in pop culture.

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 ...