ALEXJR / BACKGRID Billie Eilish is having a rootin’, tootin’ good Halloween! The 21-year-old singer nailed the spooky season with a fun cowgirl costume ... dressed up as a baby and Rutherford ...

She was almost Pirate instead of Billie The book includes many tidbits about Eilish’s childhood, including adorable baby memories from ... she knew she needed a costume that could double as ...

Billie Eilish's relationship ... posting a fun snap of her Halloween costume with her new beau, where they seemed to poke fun at their 11-year age gap Eilish dressed up as a baby, wearing a ...