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Justin Bieber and Kim Kardashian may come from different corners of the celebrity world, but their paths have crossed often enough to keep fans talking. From appearing together at high-profile events to casually supporting one another on social media, the two have maintained a friendly rapport that blends pop stardom with reality TV royalty. Kardashian has spoken in the past about watching Justin’s rise as a teenager, while Justin has occasionally been spotted mingling with the Kardashian-Jenner circle. Most recently, Kardashian commented on Justin’s photo with his son, Jack Blues. She also left a sweet comment for Jack’s first birthday. Here’s what she said that’s garnering attention.

Kim Kardashian commented on Justin Bieber’s post of him and his son, Jack Blues

Justin and Hailey Bieber’s son, Jack Blues, has quickly become a bright spot in the couple’s life, bringing a new level of joy to their public and private moments. Now just over 1 year old, Jack has already captured the hearts of fans with his adorable personality and the glimpses his parents occasionally share on social media. Justin and Hailey have been intentional about keeping his early years relatively private. But fatherhood and motherhood have added a fresh dimension to their bond, influencing how they approach work, family, and life in the spotlight.

In 2025, fans have noticed Justin’s confusing Instagram presence. While occasionally promoting music material, he also posts selfies, photos of Hailey, and pictures of himself with his son. On Aug. 18, 2025, he posted a series of out-of-focus Instagram photos with Jack on his shoulders. Kim Kardashian, a longtime fan of the Bieber family, commented positively on the post.

“No one cuter than baby Biebs,” Kardashian wrote.

The comment garnered over 2,500 likes and additional comments from fans who agreed with the reality star.

The reality star also wished the 1-year-old a happy birthday on Instagram

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Kim Kardashian has a close eye on the Bieber family’s Instagram pages. Justin and Hailey Bieber recently celebrated a major milestone: their son Jack Blues’ first birthday. Snaps from Hailey’s Instagram Stories shared by Page Six showed how the new parents celebrated: with a large “1st birthday” baby blue balloon and other gold and white balloons surrounding it. Another photo showed Jack’s hands reaching for one of the white balloons. Of course, like the rest of Hailey and Justin’s photos of their son, his face was not shown.

In August 2025, Hailey posted two photos of Jack as a baby. One of the photos shows her smiling joyfully as he rests against her chest, and the other photo shows her tightly cradling him and kissing his head, concealing his face.

“1 year of you my beautiful boy,” the happy mom captioned the post. “Happy 1st Birthday Jack Blues, you are joy personified.”

Of course, Kardashian jumped at the opportunity to show her support.

“Happy birthday Jackkkkie,” she commented.

Kim Kardashian has also commented in support of Hailey Bieber’s Vogue cover

Not only is Kim Kardashian a known fan of Justin Bieber, but she also adores his famous wife, Hailey. In May 2025, Hailey posted photos from her Vogue shoot to Instagram. Photographed by Mikael Jansson and styled by Tonne Goodman, the cover features Hailey in a Prada shirt and Tiffany & Co. earrings, exuding a minimalist elegance that mirrors her personal evolution. In her accompanying interview, the rhode founder opens up about the challenges of motherhood, including a difficult postpartum experience and the pressures of public scrutiny.

Like many other fans, Kardashian commented on the Vogue cover, which marked a major milestone in Hailey’s career.

“OBSESSED!!!! You look so beautiful!” Kardashian wrote, according to DailyMail.com.

Kardashian’s sister, Kylie Jenner, also commented in support of her friend. “Hailey!!!!! SO BEAUTIFUL,” Jenner wrote.

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