Billie Eilish and Finneas O'Connell at the 2025 ... activist Greta Thunberg in 2019 to spread awareness of climate change. Moreover, Billie is a vegan and grew up vegetarian.

Billie Eilish got on with Ariana Grande like a house on fire after a recent public appearance — and now they’re hanging out plenty and bonding over careers, fashion, romance and everything in ...