Justin Bieber and Hailey Baldwin Bieber attended a Halloween party in Los Angeles dressed as Pebbles Flintstone and Bamm-Bamm Rubble from The Flintstones. Justin went shirtless and wore furry animal print fabric, while Hailey wore a red bobbed wig and a green Pebbles-inspired top with a bone-detail skirt. The couple also attended another Halloween party, where Justin wore a beach-inspired outfit with a snorkel mask and flippers. Hailey teased two costume looks on Instagram, including a sexy vampire and a '90s fashion girl inspired by Jennifer Aniston's character in Friends. The couple celebrated their fifth wedding anniversary this year, and Justin expressed his love for Hailey on social media. Hailey commented on their mismatched styles, saying that she might dress differently from Justin based on her mood. Despite health issues, the couple remains closer than ever.