Justin Bieber and Hailey Baldwin-Bieber have marked their first Halloween as a family of three in a delightfully nostalgic and adorable way. The couple, who welcomed their son Jack Blues in August, celebrated the spooky holiday by dressing up as characters from the classic Disney animated series, "Kim Possible." Hailey, the 27-year-old model and founder of RHODE, transformed into the cheerful and fearless Kim Possible, complete with green cargo pants, a black turtleneck, and a vibrant red wig. Her husband, Justin Bieber, 30, matched her enthusiasm by dressing up as Ron Stoppable, Kim's trusty sidekick and later boyfriend. Ron's outfit included a black cap, an oversized sweatshirt, baggy cargo pants, and a khaki green utility belt. The star of the show, however, was their two-month-old son Jack, who made his Halloween debut in not one, but two adorable costumes. For the "Kim Possible" theme, Jack was dressed as Rufus, Ron's pet naked mole rat, in a pink onesie and matching hat. Justin shared heartwarming photos on Instagram where he cradled Jack, with Hailey's hand gently placed on the baby’s back. In addition to the "Kim Possible" ensemble, Hailey also posted a picture of Jack in a skeleton onesie inspired by the characters from "The Nightmare Before Christmas." This onesie featured Jack Skellington and matching white socks, capturing the essence of the spooky holiday. The Biebers announced the arrival of their son on August 23 with a heartfelt Instagram post, and since then, they have been sharing glimpses of their new life as parents. The family's Halloween celebration has garnered significant attention online, with fans and followers expressing their joy and admiration for the adorable family photos. This Halloween marks a special milestone for the Biebers as they embark on new family traditions and create lasting memories with their young son. As they navigate parenthood, Justin and Hailey continue to share their journey with their fans, spreading joy and warmth through their heartfelt and playful posts.