When Justin Bieber's dad Jeremy married a woman closer in age to his famous son, Justin wasn't judging. Instead, he was right there, acting as his father's groomsman. People reports that Justin was thrilled to be a part of his dad's big day when he walked down the aisle in Montego Bay, Jamaica, with 30-year-old Chelsey Rebelo, in 2018.

The blushing bride shared pics from the wedding on Instagram. "Yesterday was the most amazing day ever. I married my best friend! I love you!" she captioned them. In the photos, 23-year-old Justin is clad in pink shorts and a bowtie, while his 41-year-old dad wears all white. The singer grinned and clapped enthusiastically as Jeremy Bieber swept Chelsey up in a loving embrace. TMZ reported that Justin was careful not to steal the limelight from the newlyweds. He swerved on giving a toast to the happy couple. And he didn't make a speech to the 30 or so guests who attended the nuptials, which included Justin's younger siblings, Jaxon and Jazmin Bieber, from Jeremy's past relationship with Erin Wagner and Chelsey's daughter, Allie Rebello.

In the wedding photos, the new Mrs. Bieber can be seen sporting a baby bump. And sure enough, in August 2018, Justin welcomed the arrival of another sister after Chelsey gave birth to a little girl. "We welcomed a healthy baby, 'Bay Bieber,' born at 8.30 am," Jeremy captioned a photo of him holding the little bundle of joy.

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