Nina Dobrev Perfectly Channels Billie Eilish for Halloween Costume!

Halloween is one of our favorite times of the year and we’re loving all the costumes we’ve already seen this year… including Nina Dobrev dressing up as singer Billie Eilish!

The 30-year-old actress dyed the roots of her hair green to look like the “Bad Guy” singer at a party on Friday night (October 25) at a private residence in Beverly Hills, Calif.

MORE HALLOWEEN PHOTOS: See what other celebs are wearing this year!

Also in attendance at the party were Eiza Gonzalez as Maleficent, Zoey Deutch showing off some flower power with friend Charlotte Dawes, model Jasmine Tookes as a sexy pirate, and Patrick Schwarzenegger as Austin Powers with girlfriend Abby Champion as a fembot.

FYI: Jasmine is wearing a costume from Yandy.

20+ pictures inside of celebs attending the star-studded party…