ALEXJR / BACKGRID Billie Eilish is having a rootin’, tootin’ good Halloween ... Halloween costume was an eyebrow-raising nod to the age gap between her and then-boyfriend Jesse Rutherford.

Billie Eilish's relationship ... Last week, Eilish made her relationship with Rutherford Instagram official, posting a fun snap of her Halloween costume with her new beau, where they seemed ...

Billie Eilish famously ... by sharing a photo of their Halloween costumes, which poked fun at their 10-year age gap (when ...

At only 19, Billie Eilish is already ... by fans when out in public. So when Eilish set out to trick-or-treat for Halloween in 2019, she knew she needed a costume that could double as a disguise.