Bieber's fans are melting as star posts snap showing him napping with a baby

Justin Bieber has set his fans' hearts racing (what's new?) after sharing the sweetest snap of him with a baby.

The image posted on Instagram shows the pop heartthrob having a little nap with the adorable infant.

Justin has his eyes closed and his head is leaning against the baby's head as they snooze together.

The cute image – which alreay has 2,885,583 likes – has the star's followers swooning, with many posting messages declaring their love for the singer.

One wrote: "You'll be such a great daddy one day."

Another gushed: "U are the sweetest!"

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