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.

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 for this year's celebrations and was ...

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

The party's over — Billie Eilish and Jesse Rutherford have split ... they went Instagram official with a photo donning a couples Halloween costume that poked fun at the criticism of their ...

Someone referenced this costume in their post ... as an old grandpa and a baby for halloween last year… this man is just f***** creepy all around." Billie Eilish is known for writing songs ...