Justin Bieber’s bond with his sister is unbreakable.

On Monday, the Canadian singer shared a birthday tribute to his younger sister Jazmyn, who turned 14.

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“Can’t believe im saying this but Happy 14th birthday to the sweetest, most beautiful, precious, little sis a brother could ask for,” he wrote.

Bieber also shared photos from throughout their childhood together, including a picture of him posing with Jazmyn as an adorable baby.

Jazmyn has occasionally shared photos on her own Instagram account featuring her pop-star brother, including in March when she wished him a happy birthday.

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In a more recent post, she shared photos of their “fam time,” featuring their other siblings, as well as Justin’s wife Hailey Bieber.