Justin biebers grandad is 77 and his granmum is 61
no
sue(:
His grandma, Kate plays the piano.
Justin bieber's grandma plays the piano
65
73
If you mean Pattie Mallette's (Justins Mum) parents then its is Bruce and Dianne Dale.
Justin beibers grandma's name is tenille ortandas. she is also from Canada just like the other beibers and ortandases.
Justin Biebers grandfather is currently 74 years old.
15
16
He dusnt have one