Justin Bieber has a younger half-brother named Jaxon Julian Bieber who was born November 20th 2009.
Justin biebers grandad is 77 and his granmum is 61
73
65
Justin Biebers grandfather is currently 74 years old.
15
16
He dusnt have one
14 years old
Justin Biebers little sister is 3 years old!!
Justin's mom (Patricia Mallette) was 18 years old when she had Justin.
shes 4
her exact age is 98