The Justinian Code.
Justin beiber's atlant zip code is 22606
Justin Edgar's birth name is Justin Edgar.
Justin Randall TimberlakeJustin Timberlake's real name is Justin Randall Timberlake
Justin Marosa's birth name is Justin Donaldson.
Well if his name is Justin Bieber and Justin is his first name then Bieber would be his last name
Justin biebers last name is actually bieber his full name is Justin drew bieber
His name is Justin Bieber because when Pattie and Jeremy had their baby, they decided to name him Justin, and usually the baby takes the fathers' last name, so his birth name is Justin Bieber. [:
Justin
Justin Bieber's true name is Justin Drew Bieber.
Justin Ament's birth name is Justin Bruce Ament.
Justin Apone's birth name is Justin E Johns.
Justin Berfield's birth name is Justin Tyler Berfield.