Eilish exited Kendall Jenner's Halloween party with Devon Lee Carlson, who dated Rutherford for six years.
Some of the biggest celebs in entertainment donned wild costumes for the reality star's Halloween bash on Saturday.
The 21-year-old singer posted a photo to Instagram of her huge new back tattoo.
Billie Eilish debuts her new massive back tattoo in a photo shared on Instagram.
Don't miss this incredible deal on the star's popular perfume.
The duo shared a playful moment in a video from the event.
The singer addressed their post-split relationship during an Instagram Q&A with fans.
The singer took to Instagram to share a tribute to her precious puppy, Pepper.
Billie Eilish gushes over performing with a childhood hero, Hayley Williams of Paramore, in a tribute on Instagram.
From Billie Eilish to Nicki Minaj, here’s all the stars on the ‘Barbie’ movie soundtrack, out July 21. ‘Barbie’ also hits theaters July
Eilish called the surprise performance a 'dream come true.'
Check out some of ET's favorite new releases of the week!
Billie Eilish transforms into Barbie for her music video, 'What Was I Made For?,' her contribution to the 'Barbie' movie soundtrack.
Eilish has a song on the highly anticipated soundtrack for the film, out July 21.
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