
Billie Eilish turned 21 on December 18 and celebrated with a star-studded party that included Justin Bieber, her boyfriend Jesse Rutherford, and many others.
Billie Eilish celebrated her 21st birthday with a rather lavish bash at a Los Angeles venue attended by the entire American entertainment industry.

Eilish’s Christmas party had a lot of well-known people there, including her boyfriend Jesse Rutherford.
Numerous fellow musicians, including Doja Cat, Lil Nas X, Justin Bieber, Avril Lavigne, Dove Cameron, and Olivia Rodrigo, were present.
Additional stars include: Sabrina Carpenter, Khalid, Lauren Jauregui, Hailee Steinfeld, Njomza, Jesse Jo Stark, Noah Cyrus, Raveena, Skylar Astin of Pitch Perfect, MadeinTYO, Dominique Fishback of Judas and the Black Messiah, and numerous others stars in Euphoria.
The ‘Bad Guy’ singer attended the holiday-themed party in a mini dress and long gloves that appeared to reference the Mean Girls costume. Teen Vogue said that the venue had a disco ball ceiling and a version of the North Pole.
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Life-size snow globes were also part of the decor, and handmade 3D ornaments were given out as party favors. At the party, there were also Christmas trees, ribbons, and a huge Santa’s sleigh for pictures. “A Billie Christmas to all — and to all a goodnight” was also written on the wall art.
The multi-tiered confection that served as Eilish’s birthday cake was decorated with candy canes and peppermint. Lil Nas X, Dominic Fishback, and others posted a number of pictures and videos from the party to their Instagram accounts.