At only 19, Billie Eilish is already one of the ... 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.

Billie Eilish famously dated The Neighbourhood ... Eilish made their relationship Instagram-official by sharing a photo of ...

Billie Eilish's relationship with Jesse Rutherford ... 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 ...