Justin Bieber has shared a sweet throwback picture with Hailey Baldwin ahead of their imminent wedding ceremony.

The couple, who secretly married last year at a New York courthouse, are preparing to celebrate their second wedding in front of family and friends in the coming days.

Bieber took to Instagram to share a baby-faced picture of them as teenagers, writing: "My wife and I where it all began."

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Bieber and Baldwin have known each other since they were teenagers, but it wasn't until 2016 that their friendship blossomed into a romance.

In July 2018 they confirmed their engagement and married in a small courthouse ceremony two months later.

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The couple are reportedly set to tie the knot at the Montage Palmetto Bluff hotel in South Carolina on Monday (September 30). It is expected to be a star-studded ceremony.

Earlier this year, they opened up about the struggles in their marriage and their deep love for one another during an interview with Vogue magazine.