Justin Bieber Is Super 'Proud' As Younger Brother Jaxon Heads To High School

Justin Bieber is having a proud moment thanks to his younger half-brother Jaxon, who recently got into high school at nearly fourteen years old.

Jaxon is Justin's father, Jeremy Bieber's other son from his relationship with his ex-girlfriend Erin Wagner, whom he separated from in 2014.

The award-winning Canadian singer shares a close bond with the teenager and could not help but announce his entry into high school to his fans, reveling in his "favorite little man" being so grown.

Justin certainly loves being an older brother to Jaxon, as fans recently witnessed on his Instagram. He marked the boy's first day in high school with a photo dump, expressing unbridled pride.

The uploaded snaps featured the brothers having fun together. The first slide, a throwback image, showed them on scooters, while the second was a black-and-white close-up shot of the duo.  In another picture, they were captured in what looked like an amusement park with Justin playing with water, and one more slide displayed them outdoors, walking from a deck to a yard.

Other slides highlighted Jaxon as a toddler and a pre-teen alongside more close-up shots of the siblings, including one showing them sleeping.

"GONNA MAKE YOU ALL FEEL OLD," the "Purpose" star captioned the post. "MY FAVORITE LITTLE MAN IN THE WORLD IS GOING INTO HIGH SCHOOL TODAY. SO PROUD OF YOU, SO LUCKY TO BE YOUR BIG BROTHER. MISS YOU SO MUCH." 

Over two million Instagram users reacted to the post with likes, while several took to the comments section with gushing remarks about Jaxon's maturity.

"He's getting so big now. Hope Jax is having a great time on his first day of high school ❤️," an excited fan raved. A second exclaimed, "He's grown up so much, and here us getting old ?❤️."

A third admirer amazed at the news stated, "High school ALREADY??? So crazy ?" followed by one more who enthused, "Big Jax!!!!!!" Another supporter proclaimed, "The sweetest Jaxon!!!!! Go have the best year ever!!!" before a sixth comment followed: "No way – I remember when u brought him to the Grammys ?."

One more devotee found Justin's announcement "so precious!" while another noted, "Time really does be flying. Love you, Jaxooooo." The "Love Yourself" songster later dropped a cute snap of Jaxon on his Instagram Story posing in front of a stone wall with his baby sister, Bay.

He looked ready for school, wearing navy blue shorts, a matching long-sleeve shirt, white sneakers, and a backpack. Justin wrote in an attached text overlay, "Grade 9."

Not only does the 29-year-old superstar share a tight connection with his younger brother, but he is also quite close to his entire family, including his dad, Jeremy, his mom, Pattie Mallete, stepmom, Chelsey Bieber, two other half-siblings and one step-sibling.

According to PEOPLE, Justin's parents never married and have been separated for decades. However, while his mom did not have more kids, his father has four more children— daughters Jazmyn, Allie and Bay, and brother Jaxon.

Jaxon, born on November 20, 2009, is known on social media for his fashion prowess and chronicling his trips with his family as well as his boxing sessions.

The 13-year-old has also appeared on Justin's social media now and again like he once did in November 2021 when the "Baby" vocalist appreciated him as his "little bro." His declaration partly read: "I sit here and look at all of these photos, and I'm reminded of how much I love you, my precious little bro. I am so proud of you."

About three months ago, Justin's father gained quite the attention on social media after sharing an offensive post against the LGBTQ community.

He posted on Twitter at the time: "Don't forget to thank a straight person this month for your existence," adding two-finger peace sign emojis against a rainbow background.

Twitter users quickly slammed him in the comments section, with one calling him "the man who abandoned his girlfriend and son and only returned when he was successful."

The same commenter wrote, "I feel sorry for you if that's what "family" means to you. Don't forget to thank Justin for all the money you have; you're nothing without him:)."