Though the singer has been criticized for covering up, Billie has gradually embraced her femininity.
Before he was known as her producer, Finneas was simply Billie's older brother.
In 2015, Billie and Finneas made it big with the release of their hit song, "Ocean Eyes."
In a 2019 interview with Variety, Billie's mom, Maggie Baird, said that her kids are naturals when it comes to music. Baird, a musician herself, reflected, "All I had to teach [Finneas] was the basics, and he immediately got it—and the same with Billie."
Billie's family remains an important part of her success.