It is not known what Justin Bieber's favorite backpack is. Justin Bieber does have a song called Backpack that he released with Lil Wayne.
Justins favorite song is... EMPIRE STATE OF MIND My favorite song from Justin bieber is... Baby/One time My favorite song from Justin Bieber is... I'll jump off of someone's roof and die
no one JUSTIN BIEBER SOCKS!
your my favorite girl
baby
In his house
Up
Let it be
Favorite Girl
His favorite song from my world is "Down to Earth" and his favorite song from My world 2.0 is "Up". Justin Bieber's favorite song of my world is 'One Time' since it was his first hit single all around the world.
Micheal Jackson
babyIt is Baby!