Nina Dobrev's Billie Eilish Halloween Costume Wouldn't Be Complete Without Louis Vuitton

Billie Eilish isn't just one of 2019's top artists, she's one of 2019's top Halloween costumes. The spooky holiday hasn't even happened yet, but we're already seeing celebrities step out sporting some of Billie's most iconic looks. Case in point: Nina Dobrev's costume at Friday night's Casamigos Halloween party in Beverly Hills.

The 30-year-old actress paid tribute to Billie's style in an orange ensemble, and she spared no detail. Nina nailed the singer's neon green roots and signature scary music video makeup, and her bright Louis Vuitton sweatshirt screamed "Billie!" Louis Vuitton appears to be one of Billie's favorite designers (she even had a Louis Vuitton birthday cake!), so this was the perfect way to tie the outfit together. Well done, Nina!

Ahead, see more of Billie's Louis Vuitton looks and snaps from Nina's night at the Casamigos party.