Austin Butler and Kaia Gerber get artsy as Andy Warhol and Edie Sedgwick for Halloween

Austin Butler and Kaia Gerber brought a bit of 1960s New York to modern-day Los Angeles with their fashionable Halloween couple costume this year. The Elvis actor and his model girlfriend attended the annual Casamigos Halloween party as none other than legendary artist Andy Warhol and Factory superstar Edie Sedgwick on Friday.

In photos taken at the event, Butler can be seen sporting a silver wig, sunglasses, and an all-black ensemble consisting of a turtleneck, leather jacket, and jeans. And, ever the artist, he carried around a camera, snapping photos throughout the evening.

Gerber leaned fully into Sedgwick's It Girl vibe, donning a shaggy pixie-cut wig — with a cigarette perched behind her ear — as well as a fluffy coat, a black turtleneck tank top, and a pair of black tights.

Matt Winkelmeyer/Getty Austin Butler and Kaia Gerber dressed as Andy Warhol and Edie Sedgwick for Halloween

But Kaia wasn't the only Gerber getting festive. Her father, Rande Gerber, who co-founded the famous tequila brand with actor George Clooney and Mike Meldman, was also present, along with his supermodel wife, Cindy Crawford. And, suffice to say, the couple's Halloween costume was nothing short of electrifying.

Drawing inspiration from Grease, Gerber dressed as affable T-Bird Danny Zuko while Crawford went as Danny's girlfriend, Sandy Olsson, rocking the pair's all-black looks from the end of the 1978 movie musical.

With his hair dyed John Travolta black, Gerber looked cool and casual in Danny's signature leather jacket and skinny jeans, and Crawford wore Olivia Newton-John's unforgettable black jumpsuit and heels.

Michael Kovac/Getty Images Rande Gerber and Cindy Crawford as 'Grease' couple Danny and Sandy

Butler and the Gerbers were just some of the celebrities who kick-started Halloweekend at the event. Justin Bieber, Edward Norton, Machine Gun Kelly, Megan Fox, Glen Powell, Chord Overstreet, and more also showed up to celebrate.

Want more movie news? Sign up for Entertainment Weekly's free newsletter to get the latest trailers, celebrity interviews, film reviews, and more.

Related content:

• Watch Austin Butler and Tom Hardy jump on motorcycles and kick ass in The Bikeriders trailer

• Austin Butler recalls 'getting hit in the eyes with rocks' while filming The Bikeriders: 'It was visceral'

• Austin Butler kept the black leather jumpsuit he wears in Elvis