Someone else commented, "Happy 31st birthday Daddy Bieber." It comes days after Justin spoke out about his father-son bond for the first time, revealing he has plans to teach little Jack to ice skate.

In the snap, their son could be seen wearing a cute ... Behind Justin's buzzcut, their room was adorned with a trio of "happy birthday" balloons, signifying the "Never Say Never" singer's latest trip ...

In the image, their son could be seen wearing ... their room was decorated with a trio of "happy birthday" balloons, signifying the singer's latest trip around the sun. "31 ️‍ ," Hailey ...

Justin Bieber and Hailey Bieber were seen getting cozy together in new photos with their son, Jack Blues ... with his wife and friends for his 31st birthday. One snap showed Justin singing ...