Hailey and Justin Bieber Are the Cutest Couple in 'Flintstones' Halloween Costumes

Hailey and Justin Bieber just won this Halloweekend's couple costumes.

The model and the singer attended Vas J. Morgan and Michael Braun's Halloween Party in LA last night, where they coordinated in adult costumes of Pebbles and Bamm-Bamm from the classic cartoon The Flintstones. Hailey chose a patent leather iteration of Pebbles' signature outfit, pairing a green and black sleeveless crop top a blue and coral micro miniskirt. Both pieces included a torn-effect hemline, and the skirt was also adorned with a bone detail along the waist.

The Rhode founder topped off the look with a bright red bob wig, and added her favorite diamond "B" necklace. She also wore rosy blush and a glossy pink lip.

Meanwhile, the "Peaches" singer went shirtless, only wearing a furry animal print bottoms and an attached furry bone. He added backward yellow cap printed with the black shapes from all of the Flintstones' outfits.

The married couple have also celebrated the holiday in several individual costumes this year. On Friday night, the "Sorry" singer attended the Casamigos party solo in Beverly Hills, where he channeled a scuba diver in a pink-and-orange floral shirt, purple swim trunks, flipper shoes, and a snorkel mask.

Hailey started spooky season earlier this month, teasing two stylish Halloween costumes in an Instagram photo dump posted on Oct. 18. For one standout look, which she wore while filming an episode of her YouTube show "Who's In My Bathroom?," the star channeled vampire energy in a lacy red corset with an attached black skirt, transparent black off-the-shoulder sleeves, and lacy thigh-high stockings. She added a multi-strand pearl choker, as well as her B necklace, and enhanced her glam beauty look with fake blood trailing from her lips.

You Might Also Like

• 4 Investment-Worthy Skincare Finds From Sephora

• The 17 Best Retinol Creams Worth Adding to Your Skin Care Routine