When Billie Eilish's music career first started she was also a dancer and the song "ocean eyes" was actually made for her dance class. No she still dances but just up on stage infront of large crowds of people. Theres not much information on her intrests but from what I know I beleive she likes to travel a lot and make music with her brother creativly. She dyes her hair a lot sontantly changing the colors and trying diffent things. To calm herslef down a hobbie she loves a lot is hanging around horses and riding them. Shes also a fully commited vegan and is pretty serious about that.